Best PC Cases Under $300: 15 Spec-Based Picks
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Finding the best PC cases under $300 requires evaluating physical dimensions, internal clearance, and hardware compatibility. The ASUS ROG Strix Helios RGB Mid-Tower Case takes the top position because its frame supports 420mm radiators and large E-ATX motherboards.
A total of 15 products are compared directly using the specifications published on the listings. You can examine critical attributes such as radiator mount locations, included fans, and total interior volume. This guide helps you decide which case size and cooling configuration fit your components and desk space.
Quick picks
The best fit for you
- You build a large liquid-cooled E-ATX gaming rig ASUS ROG Strix Helios RGB Mid-Tower Case The chassis accommodates E-ATX motherboards and provides clearance for 420mm liquid cooling radiators.
- You want maximum stock airflow for an ATX system Fractal Design Torrent RGB Mid-Tower Case Five pre-installed PWM fans and an open grille layout supply immediate, high-volume air cooling.
- You want an inverted layout with sound insulation be quiet! Silent Base 802 Window ATX Midi Tower An invertible motherboard tray pairs with modular sound-dampening panels and three 140mm fans.
- You want an open showcase for 420mm radiators Thermaltake Core P3 TG Pro Open Frame ATX Case The open-frame design offers total hardware exposure while providing dedicated mounting space for 420mm radiators.
Our 15 picks
ASUS ROG Strix Helios RGB Mid-Tower Case
Best for: large liquid-cooled E-ATX gaming builds
- Motherboard Support
- EATX
- Case Type
- Mid Tower
- Side Panel
- Tempered Glass
- Included Fans
- 4x 140mm
- Radiator Support
- 420mm
- Use
- Gaming
The ASUS ROG Strix Helios is a mid-tower case built with a metal chassis and 4mm smoked tempered-glass panels. It accommodates E-ATX motherboards and fits large custom cooling setups with room for radiators up to 420mm long and 90mm thick. You get four pre-installed 140mm fans, an integrated fan hub, and mounts for up to nine storage drives. This chassis suits you if you need extensive cooling capacity and multi-GPU mounting support.
Pros
- Includes four 140mm fans and an integrated fan hub
- Supports liquid cooling radiators up to 420mm long and 90mm thick
- Accommodates E-ATX motherboards and up to nine storage drives
- Dedicated water pump and reservoir mounting bracket
Cons
- Heavy bare chassis weight at 39.7 pounds
- Large footprint measuring 23.3 inches tall and 22.2 inches long
Good fit if
- You plan to install a custom liquid cooling loop with a 420mm radiator.
- You need room for an E-ATX motherboard and up to nine storage drives.
- You want pre-installed 140mm cooling fans and built-in cable management covers.
Skip if
- You need a lightweight chassis that is easy to move.
- You have limited desk clearance for a case over 23 inches tall.
Verdict: ASUS ROG Strix Helios E-ATX Mid-Tower delivers expansive clearance for 420mm radiators, large motherboards, and multiple GPUs. Its 39.7-pound metal frame and tall profile require substantial desk space and a dedicated setup location.
Fractal Design Torrent RGB Mid-Tower Case
Best for: High-airflow ATX builds with pre-installed fans
- Motherboard Support
- ATX
- Case Type
- Mid Tower
- Side Panel
- Light Tint Tempered Glass
- Fan Size
- 140mm
- Use
- Gaming
- Lighting
- RGB
The Fractal Design Torrent RGB is an ATX mid-tower chassis focused on heavy airflow. It features an open front grille paired with two 180 mm front PWM intake fans and three 140 mm bottom PWM fans. The build uses light-tint tempered glass side panels and includes optional nylon dust filters. This setup suits you if you run heat-intensive gaming components and want comprehensive out-of-the-box cooling without purchasing extra fans.
Pros
- Includes five pre-installed PWM fans including two 180 mm intake fans
- Open grille front and bottom intakes maximize direct airflow
- Light-tint tempered glass side panels show interior components
- Includes optional front and bottom nylon dust filters
Cons
- Chassis is heavy at 28.7 pounds unbuilt
- Motherboard compatibility lists ATX without E-ATX support
Good fit if
- You want maximum air intake using large 180 mm fans.
- You prefer a chassis that comes with five PWM fans factory-installed.
- You want a tempered glass mid-tower designed for GPU base cooling.
Skip if
- You need a lightweight build under 25 pounds.
- You run a motherboard format larger than standard ATX.
Verdict: Fractal Design Torrent RGB Mid-Tower Case delivers powerful air cooling directly to your hardware using five pre-installed PWM fans and an open grille layout.
be quiet! Silent Base 802 Window ATX Midi Tower
Best for: customizable airflow and quiet inverted PC builds
- Motherboard Support
- ATX
- Case Type
- Midi Tower
- Included Fans
- 3x Pure Wings 2 140mm
- Use
- Gaming
- Dimensions
- 21.2 × 11.1 × 21.8 inches
- Weight
- 29.1 pounds
View on Amazon: be quiet! Silent Base 802 Window ATX Midi Tower
The be quiet! Silent Base 802 ATX Midi Tower is a modular enclosure designed for flexible cooling and acoustics. You get three pre-installed Pure Wings 2 140mm fans, sound-insulating mats, and swappable top and front panels for airflow or noise dampening. The integrated fan controller and front USB 3.2 Gen. 2 Type C port handle connectivity. This case suits you if you want a quiet, inverted-capable setup.
Pros
- Includes three Pure Wings 2 140mm fans
- Interchangeable panels for silent operation or higher airflow
- Relocatable motherboard tray supports inverted layouts
- Built-in fan controller and USB 3.2 Gen. 2 Type C port
Cons
- Weighs 29.1 pounds before installing components
- Motherboard support listed only for standard ATX
Good fit if
- You need an inverted motherboard layout option.
- You want interchangeable panels to switch between quiet operation and airflow.
- You want three included 140mm fans and built-in fan control.
Skip if
- You need support for larger E-ATX motherboards.
- You want a lightweight chassis that is easy to transport.
Verdict: be quiet! Silent Base 802 ATX Midi Tower gives you flexible acoustic control with modular panels, three 140mm fans, and an invertible tray. Its heavy 29.1-pound frame provides dedicated noise insulation and versatile front-panel connectivity.
Corsair 7000D Airflow Full-Tower Case
Best for: Large multi-radiator custom liquid cooling builds
- Motherboard Support
- ATX
- Case Type
- Full-Tower
- Included Fans
- 3x 140mm
- Radiator Support
- 420mm
- Dimensions
- 21.7 × 9.76 × 23.6 inches
- Weight
- 41.2 pounds
The Corsair 7000D Airflow is a full-tower ATX case built for large-scale liquid cooling setups. It supports up to two simultaneous 420mm radiators or three 360mm radiators, alongside space for 12 120mm fans. You get three included 140mm fans, a PWM repeater, and 30mm of cable clearance behind the motherboard tray. It suits you if you plan an extensive multi-radiator cooling loop and need maximum interior room.
Pros
- Supports two 420mm or three 360mm radiators simultaneously
- Includes three 140mm AirGuide fans and a PWM fan repeater
- Accommodates up to 12 120mm or seven 140mm fans
- Provides 30mm of cable routing depth with a hinged access door
Cons
- Heavy empty chassis weight of 41.2 pounds
- Large footprint at 23.6 inches high and 21.7 inches long
Good fit if
- You plan to install multiple 360mm or 420mm radiators.
- You need clearance for up to 12 cooling fans.
- You want a deep 30mm channel for rear cable management.
Skip if
- You need a lightweight chassis that is easy to relocate.
- You have limited vertical desk clearance under 24 inches.
Verdict: Corsair 7000D Airflow Full-Tower Case delivers immense radiator capacity and comes equipped with three 140mm fans and a PWM repeater. Its 41.2-pound weight and large footprint require substantial desk space, but provide ample room for high-end cooling loops.
Thermaltake Core P3 TG Pro Open Frame ATX Case
Best for: open showcase builds using 420mm radiators
- Motherboard Support
- ATX
- Case Type
- Open Frame
- Side Panel
- Tempered Glass
- Radiator Support
- 420mm
- Dimensions
- 19.7 × 19.7 × 11 inches
- Weight
- 15.4 pounds
View on Amazon: Thermaltake Core P3 TG Pro Open Frame ATX Case
The Thermaltake Core P3 TG Pro is an open-frame ATX case built with a tempered glass panel. You get support for 420mm radiators using the included bracket, along with an integrated GPU holder and a stepped motherboard tray to eliminate clearance issues. It suits you if you want an open showcase design that accommodates large graphics cards and liquid cooling setups.
Pros
- Supports up to a 420mm radiator via the included bracket
- Open-frame construction with a tempered glass panel
- Includes dedicated GPU holder
- Stepped motherboard plate prevents clearance issues with graphics cards
Cons
- Open frame construction leaves internal hardware exposed
- Limits motherboard compatibility to standard ATX without E-ATX support
Good fit if
- You want an open-frame case with a protective tempered glass panel
- You plan to install a 420mm cooling radiator
- You need built-in support for large graphics cards and power supplies
Skip if
- You want a fully enclosed chassis to seal in components
- You need support for motherboards larger than standard ATX
Verdict: Thermaltake Core P3 TG Pro Open Frame ATX Case provides an open showcase layout with support for 420mm radiators and large components. It is a solid choice if you want open-air liquid cooling visibility rather than a sealed enclosure.
RackChoice 4U Rackmount 360mm Radiator Chassis
Best for: liquid-cooled 4U rackmount workstation builds
- Motherboard Support
- EATX, ATX, MicroATX, Mini-ITX
- Case Type
- 4U rackmount
- Radiator Support
- 360mm
- Use
- Server
- Compatible Device
- Radiator
- Dimensions
- 18.3 × 19 × 7 inches
View on Amazon: RackChoice 4U Rackmount 360mm Radiator Chassis
This 4U rackmount server chassis from Rackchoice measures 19 inches wide, 7 inches high, and 18.3 inches deep. It supports liquid cooling radiators up to 360mm alongside EATX, ATX, MicroATX, and Mini-ITX motherboards. Inside, you get eight full-height expansion slots and two 3.5-inch internal drive bays. It suits you if you need to mount a liquid-cooled server in a rack.
Pros
- Accommodates liquid cooling radiators up to 360mm
- Supports EATX, ATX, MicroATX, and Mini-ITX motherboards
- Provides 8 full-height PCI/PCIe expansion slots
- Standard 4U rackmount form factor fitting 19-inch racks
Cons
- Does not support sliding rails and requires a rack shelf
- Limited to 2 internal 3.5-inch drive bays
Good fit if
- You need 360mm liquid cooling support inside a 4U rackmount chassis.
- You are building an EATX or ATX system requiring up to eight full-height expansion cards.
- You plan to support the chassis on a server rack shelf.
Skip if
- You need sliding rack rails for maintenance access.
- You require more than two 3.5-inch storage drives.
Verdict: Rackchoice 4U Rackmount 360mm Radiator Chassis delivers 360mm liquid cooling support and eight full-height PCIe slots in a standard 4U server enclosure. It trades sliding rail compatibility and extensive drive storage for large radiator accommodation.
Lian Li O11D EVO XL Full Tower Case
Best for: Triple 420mm radiator liquid cooling builds
- Motherboard Support
- E-ATX
- Case Type
- Full Tower
- Radiator Support
- 420mm
- Dimensions
- 24.4 × 16 × 25.6 inches
The Lian Li O11D EVO XL Full Tower is a high-capacity white chassis engineered for heavy liquid cooling. It accommodates up to three 420mm radiators and supports E-ATX motherboards. You get a three-level adjustable motherboard tray to clear thick cooling hardware, a removable front pillar for panoramic hardware visibility, and three dust filters. It suits you if you are building an elaborate custom-loop PC or multi-radiator workstation.
Pros
- Supports up to three 420mm radiators simultaneously
- Three-level height-adjustable motherboard tray
- Removable front pillar creates an unobstructed view
- Integrated ARGB lighting strip with motherboard sync support
- Movable I/O module and fan brackets with toolless installation
Cons
- Large physical footprint measuring 16 inches wide and 25.6 inches tall
- No pre-installed cooling fans listed in specifications
Good fit if
- You plan to run multiple 420mm radiators in a custom liquid loop.
- You use an E-ATX motherboard and need flexible internal clearances.
- You prefer a pillarless front-and-side view to showcase interior hardware.
Skip if
- You have limited desk or floor clearance for a wide 16-inch chassis.
- You want a case that includes pre-installed cooling fans out of the box.
Verdict: Lian Li O11D EVO XL Full Tower delivers massive radiator capacity and layout modularity for large-scale liquid cooling builds. Its broad 16-inch frame and removable pillar make it an expansive showcase for high-end E-ATX hardware.
ASUS ProArt Full-Tower Case
Best for: large E-ATX workstation builds requiring heavy airflow
- Motherboard Support
- E-ATX
- Case Type
- Full-Tower
- Radiator Support
- 420 mm
- Dimensions
- 23.4 × 9.65 × 22.1 inches
- Weight
- 35.5 pounds
This full-tower chassis accommodates E-ATX motherboards and large cooling setups. You get two 200 mm by 38 mm front intake fans, a 140 mm rear exhaust fan, and mounting space for a 420 mm radiator. Internal air deflectors channel flow directly across hardware, while the front panel integrates a 20Gbps USB Type-C port. It suits you if you build high-power workstations requiring large components and dedicated high-volume intake fans.
Pros
- Includes two 200 x 38 mm front fans and one 140 mm rear fan
- Accommodates liquid cooling setups with radiators up to 420 mm
- Front panel includes a 20Gbps USB Type-C port and fan control
- Built-in infrared dust indicator alerts when filter needs cleaning
Cons
- Heavy chassis weighing 35.5 pounds empty
- Large footprint measuring 23.4 inches long and 22.1 inches tall
- Pre-installed fans do not include RGB lighting
Good fit if
- You need native support for an E-ATX motherboard and a 420 mm radiator
- You want pre-installed 200 mm intake fans and a built-in fan hub
- You require 20Gbps USB Type-C front-panel connectivity
Skip if
- You need a lightweight or compact case for limited desk space
- You want factory-installed RGB lighting on your case fans
Verdict: ASUS ProArt Full-Tower E-ATX Case delivers heavy airflow through dual 200 mm intake fans and supports 420 mm radiators for large workstation components. It gives you expansive hardware clearance and high-bandwidth front I/O if your workspace accommodates a 35.5-pound frame.
Fractal Design Meshify 3 XL White ARGB
Best for: spacious high-airflow builds needing standalone lighting control
- Side Panel
- TG Clear Tint
- Included Fans
- 3x Momentum 14 ARGB Gen 2
- Lighting
- RGB
- Dimensions
- 22.3 × 20.3 × 9.6 inches
- Weight
- 29.6 pounds
The Fractal Design Meshify 3 XL White ARGB is a large PC case featuring a rockface-inspired mesh front panel and clear-tint tempered glass. You get three included Momentum 14 ARGB Gen 2 fans with LCP blades and true FDB bearings. An included Adjust Pro Hub handles fan and lighting adjustments without downloads. This chassis suits you if you want a spacious layout with dedicated GPU ventilation guidance and hardware-level ARGB controls.
Pros
- Includes three Momentum 14 ARGB Gen 2 fans with LCP blades and true FDB bearings
- Hardware-based Adjust Pro Hub enables fan and lighting adjustments without software downloads
- Dedicated internal air guide channels ventilation directly toward the GPU
- Clear-tint tempered glass side panel paired with high-ventilation front mesh
Cons
- Heavy empty chassis weight at 29.6 pounds
- Large footprint measuring 22.3 inches long and 20.3 inches wide
Good fit if
- You want three included 140mm ARGB Gen 2 fans right out of the box.
- You prefer configuring lighting and fan settings via a physical hub without software installs.
- You need a full-size case layout with dedicated GPU cooling ducting.
Skip if
- You need a lightweight chassis that is easy to move or transport.
- You have limited desk or floor clearance for a 20.3-inch wide, 22.3-inch long enclosure.
Verdict: Fractal Design Meshify 3 XL White ARGB delivers expansive internal room, dedicated GPU airflow channeling, and three high-grade 140mm fans managed by a standalone hub. It stands out among 15 cases if you prioritize high ventilation and hardware-controlled lighting.
ARrase Tempered Glass Micro-ATX PC Case
Best for: compact Micro-ATX builds needing USB 3.0
- Motherboard Support
- ITX / M-ATX
- Side Panel
- Tempered Glass
- Connectivity
- USB 3.0
- Weight
- 13.7 pounds
The ARrase Micro-ATX Tempered Glass Case is a compact steel chassis designed for Micro-ATX and Mini-ITX motherboards. It features a tempered glass side panel to display internal components and a top input-output panel equipped with one USB 3.0 port, two USB 2.0 ports, and HD audio jacks. The chassis accommodates up to six 120mm cooling fans and supports liquid cooling setups. You get a space-saving footprint for smaller desk configurations.
Pros
- Top I/O panel includes a dedicated USB 3.0 port alongside two USB 2.0 ports
- Tempered glass side panel provides full visibility of internal hardware
- Mounting support for up to six 120mm cooling fans and liquid cooling
- Steel construction with a total weight of 13.7 pounds
Cons
- Cooling fans are not included with the chassis
- Motherboard compatibility is limited to ITX and Micro-ATX form factors
- Top connectivity includes only a single USB 3.0 port
Good fit if
- You build with a Mini-ITX or Micro-ATX motherboard.
- You bring your own set of 120mm fans or liquid cooling hardware.
- You want top-panel USB 3.0 access on a compact steel case.
Skip if
- You require pre-installed case fans right out of the box.
- You intend to install a full-size ATX motherboard.
- You need multiple front-panel USB 3.0 ports.
Verdict: ARrase Micro-ATX Tempered Glass Case delivers essential USB 3.0 connectivity and tempered glass hardware viewing for compact setups. You must provide your own 120mm fans to complete the cooling configuration.
HAVN HS 420 Dual-Chamber Mid-Tower
Best for: Triple-420mm radiator custom liquid cooling builds
- Motherboard Support
- ATX
- Case Type
- Mid Tower
- Side Panel
- Tempered Glass
- Radiator Support
- 420mm
- Fan Size
- 140mm
- Compatible Device
- Radiator
The HAVN HS 420 Dual-Chamber ATX Mid Tower Case gives you extensive cooling capacity inside a dual-chamber chassis. It supports up to three 420mm radiators across the top, right, and bottom, alongside mounts for eleven 140mm fans with rubber vibration pads. A curved tempered glass panel provides an open interior view. This chassis suits you if you plan an elaborate custom liquid-cooling setup with standard ATX motherboards and require dedicated cable management channels.
Pros
- Supports up to three 420mm radiators simultaneously
- Mounting slots for eleven 140mm cooling fans
- Includes fan hub and SimpliCable routing channels
- Comes with 3-way GPU support bracket and VESA display mount
Cons
- Heavy empty chassis weight of 39.3 pounds
- Motherboard support limited to standard ATX
- Large footprint measuring over 21 inches deep and tall
Good fit if
- You plan to install multiple 420mm liquid-cooling radiators.
- You want panoramic curved glass with integrated cable routing channels.
- You plan to mount an internal screen using the included VESA bracket.
Skip if
- You need compatibility with oversized E-ATX motherboards.
- You require a lightweight case that is easy to relocate.
- You have limited desk clearance for a deep mid-tower chassis.
Verdict: HAVN HS 420 Dual-Chamber ATX Mid Tower Case delivers massive 420mm radiator compatibility and panoramic curved glass for cooling-focused ATX builds. Its heavy 39.3-pound steel and glass structure provides a rigid, feature-dense platform for multi-radiator loops.
be quiet! Light Base 900 Invertible E-ATX Case
Best for: multi-radiator custom liquid cooling builds
- Motherboard Support
- E-ATX
- Radiator Support
- 420mm
- Dimensions
- 25.2 × 22.4 × 16.9 inches
- Weight
- 13.2 pounds
View on Amazon: be quiet! Light Base 900 Invertible E-ATX Case
This dual-chamber chassis from be quiet! accommodates E-ATX motherboards and offers full-view window panels on the front and side. It supports up to three radiators simultaneously, including two 420mm units in the lid and base alongside a 360mm side mount. You can also invert the layout or place it horizontally using removable feet. It suits builders seeking expansive liquid cooling headroom and flexible desk orientation.
Pros
- Supports up to two 420mm radiators and one 360mm radiator simultaneously
- Allows standard, inverted, or horizontal orientations with removable feet
- Includes two ARGB and PWM hubs providing 12 total ports
- Accommodates up to 10 cooling fans across the chassis
Cons
- Ships without pre-installed cooling fans
- Requires significant desk space due to a 25.2-inch depth
Good fit if
- You plan to build with multiple large radiators up to 420mm.
- You need an inverted or horizontal chassis orientation.
- You want integrated hubs to centralize PWM and ARGB connections.
Skip if
- You want a case that includes pre-installed cooling fans.
- You have limited desk depth for a 25.2-inch chassis.
Verdict: be quiet! Light Base 900 Invertible E-ATX Case delivers massive radiator capacity and multi-orientation flexibility for showcase liquid-cooled builds. Its complete absence of stock fans requires you to supply the entire cooling setup yourself.
NZXT H9 Flow RGB+ Dual-Chamber ATX Case
Best for: dual-420mm cooling setups and back-connect builds
- Motherboard Support
- ATX
- Side Panel
- Tempered Glass
- Radiator Support
- 420mm
- Lighting
- RGB
- Dimensions
- 20.1 × 19.3 × 12.6 inches
- Weight
- 29.5 pounds
The NZXT H9 Flow RGB+ is a dual-chamber ATX case featuring wraparound tempered glass panels. You get dual 420mm radiator mounting locations on the top and front-right, along with support for ten total fans. The chassis includes two F420 RGB Core fans, a rear fan, and a control hub. It also supports back-connect motherboards like ASUS BTF. It suits your build if you prioritize maximum airflow spacing and panoramic component visibility.
Pros
- Fits up to 420mm radiators on the top and front-right mounts
- Includes two F420 RGB Core fans, one rear fan, and an NZXT Control Hub
- Supports back-connect motherboards including ASUS BTF and MSI Project Zero
- Ten-fan total capacity with mounts for up to nine 140mm fans
Cons
- Included rear fan uses a 3-pin DC connection instead of PWM
- Motherboard compatibility lists ATX without verified E-ATX support
Good fit if
- You plan to install 420mm liquid cooling radiators on the top or front-right.
- You use a back-connect motherboard such as ASUS BTF or MSI Project Zero.
- You want pre-installed multi-fan RGB units with an included control hub.
Skip if
- You need native chassis clearance for motherboards larger than standard ATX.
- You require PWM speed control on every pre-installed fan out of the box.
Verdict: NZXT H9 Flow RGB+ Dual-Chamber ATX Case delivers expansive 420mm radiator options and back-connect motherboard support inside a dual-chamber frame. It provides high cooling capacity with included multi-fan units and wraparound glass.
Rosewill Thor Full-Tower Hot-Swap Case
Best for: high-capacity NAS builds needing front Type-C
- Motherboard Support
- E-ATX
- Case Type
- Full Tower
- Included Fans
- 1x 140mm PWM
- Max GPU Length
- 400mm
- Use
- Server
- Connectivity
- Type-C
The Rosewill Thor Full Tower NAS Case is a large workstation chassis designed for high-capacity storage builds. You get eight hot-swap 3.5-inch drive bays alongside five standard 3.5-inch internal bays, five external 5.25-inch drive bays, and front-panel USB 3.2 Gen Type-C connectivity. It accommodates E-ATX motherboards and graphics cards up to 400mm long. This layout suits you if you need extensive drive expansion and modern high-speed peripheral connections in a standalone tower.
Pros
- Eight hot-swap 3.5-inch SATA/SAS bays plus five internal 3.5-inch bays
- Front-panel USB 3.2 Gen Type-C port
- Supports large E-ATX motherboards and 400mm graphics cards
- Five external 5.25-inch drive bays
Cons
- Includes only one 140mm PWM fan
- Large footprint measuring 20.9 inches tall and 20.1 inches deep
Good fit if
- You need hot-swap storage bays for a dedicated server or NAS build.
- You run an E-ATX motherboard with a graphics card up to 400mm.
- You require external 5.25-inch drive bays alongside Type-C connectivity.
Skip if
- You want multiple pre-installed case fans out of the box.
- You have limited floor or desk space for a full-tower chassis.
Verdict: Rosewill Thor Full Tower NAS Case combines extensive hot-swap drive capacity with modern Type-C connectivity and E-ATX support. It provides an expansive framework for server hardware, though extra cooling fans must be added separately.
HYTE Y70 Panoramic ATX Mid-Tower Case
Best for: panoramic showcase builds with vertical GPUs
- Motherboard Support
- ATX
- Case Type
- Mid-Tower
- Side Panel
- Tempered Glass
- Radiator Support
- 360mm
- Use
- Gaming
- Dimensions
- 18.5 × 12.5 × 18.5 inches
This mid-tower chassis features a three-piece panoramic tempered glass design and a dual-chamber interior for ATX motherboards. You get four vertical expansion slots backed by an included PCIe 4.0 x16 riser cable. For cooling, the case accommodates 360mm radiators up to 125mm thick on the side and 68mm thick up top, plus bottom mounts for three 120mm fans. It suits you if you want wide hardware visibility.
Pros
- Three-piece panoramic tempered glass exterior
- Included PCIe 4.0 x16 riser cable with 4-slot vertical GPU mounting
- Dual 360mm radiator support on top and side mounts
- Bottom fan bracket fits three 120mm or two 140mm fans up to 32mm thick
Cons
- Motherboard support limited to ATX without E-ATX support listed
- Broad 12.5-inch width takes up significant desk space
- Substantial unbuilt weight of 23.2 pounds
Good fit if
- You want three-piece panoramic glass for component viewing.
- You plan to mount a thick 4-slot graphics card vertically using an included PCIe 4.0 riser.
- You intend to install side or top 360mm liquid cooling radiators.
Skip if
- You need a case compatible with E-ATX motherboards.
- You have limited desk clearance for a 12.5-inch wide chassis.
Verdict: HYTE Y70 Panoramic ATX Mid-Tower Case delivers wide component visibility paired with 4-slot vertical graphics clearance. Dual 360mm radiator locations and dedicated bottom fan positions provide strong liquid cooling options.
Specifications side by side
| Spec | ASUS ROG Strix Helios RGB Mid-Tower Case | Fractal Design Torrent RGB Mid-Tower Case | be quiet! Silent Base 802 Window ATX Midi Tower | Corsair 7000D Airflow Full-Tower Case | Thermaltake Core P3 TG Pro Open Frame ATX Case | RackChoice 4U Rackmount 360mm Radiator Chassis | Lian Li O11D EVO XL Full Tower Case | ASUS ProArt Full-Tower Case | Fractal Design Meshify 3 XL White ARGB | ARrase Tempered Glass Micro-ATX PC Case | HAVN HS 420 Dual-Chamber Mid-Tower | be quiet! Light Base 900 Invertible E-ATX Case | NZXT H9 Flow RGB+ Dual-Chamber ATX Case | Rosewill Thor Full-Tower Hot-Swap Case | HYTE Y70 Panoramic ATX Mid-Tower Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Motherboard Support | EATX | ATX | ATX | ATX | ATX | EATX, ATX, MicroATX, Mini-ITX | E-ATX | E-ATX | not specified | ITX / M-ATX | ATX | E-ATX | ATX | E-ATX | ATX |
| Case Type | Mid Tower | Mid Tower | Midi Tower | Full-Tower | Open Frame | 4U rackmount | Full Tower | Full-Tower | not specified | not specified | Mid Tower | not specified | not specified | Full Tower | Mid-Tower |
| Side Panel | Tempered Glass | Light Tint Tempered Glass | not specified | not specified | Tempered Glass | not specified | not specified | not specified | TG Clear Tint | Tempered Glass | Tempered Glass | not specified | Tempered Glass | not specified | Tempered Glass |
| Included Fans | 4x 140mm | not specified | 3x Pure Wings 2 140mm | 3x 140mm | not specified | not specified | not specified | not specified | 3x Momentum 14 ARGB Gen 2 | not specified | not specified | not specified | not specified | 1x 140mm PWM | not specified |
| Radiator Support | 420mm | not specified | not specified | 420mm | 420mm | 360mm | 420mm | 420 mm | not specified | not specified | 420mm | 420mm | 420mm | not specified | 360mm |
| Max GPU Length | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 400mm | not specified |
| Tower Size | Mid-Tower | Mid-Tower | not specified | Full-Tower | not specified | not specified | Full-Tower | Full-Tower | not specified | not specified | Mid-Tower | not specified | not specified | Full-Tower | Mid-Tower |
| Fan Size | not specified | 140mm | not specified | 140mm | not specified | not specified | not specified | not specified | not specified | not specified | 140mm | not specified | not specified | 140mm | not specified |
| Use | Gaming | Gaming | Gaming | not specified | not specified | Server | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Server | Gaming |
| Lighting | RGB | RGB | not specified | not specified | not specified | not specified | not specified | not specified | RGB | not specified | not specified | not specified | RGB | not specified | not specified |
| Connectivity | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | USB 3.0 | not specified | not specified | not specified | Type-C | not specified |
| Compatible Device | not specified | not specified | not specified | not specified | not specified | Radiator | not specified | not specified | not specified | not specified | Radiator | not specified | not specified | not specified | not specified |
| Dimensions | 22.2 × 9.8 × 23.3 inches | 21.4 × 9.5 × 20.9 inches | 21.2 × 11.1 × 21.8 inches | 21.7 × 9.76 × 23.6 inches | 19.7 × 19.7 × 11 inches | 18.3 × 19 × 7 inches | 24.4 × 16 × 25.6 inches | 23.4 × 9.65 × 22.1 inches | 22.3 × 20.3 × 9.6 inches | not specified | 21.3 × 10.2 × 21.5 inches | 25.2 × 22.4 × 16.9 inches | 20.1 × 19.3 × 12.6 inches | 20.1 × 9.1 × 20.9 inches | 18.5 × 12.5 × 18.5 inches |
| Weight | 39.7 pounds | 28.7 pounds | 29.1 pounds | 41.2 pounds | 15.4 pounds | 15.3 pounds | not specified | 35.5 pounds | 29.6 pounds | 13.7 pounds | 39.3 pounds | 13.2 pounds | 29.5 pounds | not specified | 23.2 pounds |
| Size | GX601|Black | 20.9"x9.5"x21.4" | 539 x 245 x 537 | 7000 Series | not specified | 19 inches (W) x 7 inches (H) x 18.3 inches (D) | Full-tower" | Black|TG | Meshify 3 XL | One Size | not specified | not specified | RGB Fans | E-ATX | not specified |
| Color | Helios GX601|Black | RGB Black - Light tin | Black | Black | Black | black | White | Black|Non ARGB Fans | Ambience Pro RGB White TG Clear Tint | Style 1 | Black | Black | Black | Black | Metaphor: ReFantazio |
| Model | 90DC0020-B39000 | FD-C-TOR1A-04 | BGW39 | CC-9011218-WW | CA-1G4-00M1WN-09 | not specified | O11DEXL-W_US | PA602/BLK/TG | FD-C-MES3X-05 | 18648 | HVN-CA-HS420-06 | BGW71 | CM-H92FB-P1 | THOR NAS PRO | CS-HYTE-Y70-METAPHOR |
Trade-Offs in the Under $300 Range
Cases in the Under $300 category emphasize large footprints and broad hardware clearance, but you make specific functional trade-offs. Several chassis omit pre-installed cooling fans entirely, requiring you to source your own fans. Large mid-tower and full-tower frames frequently exceed 20 inches in height and weigh up to 41.2 pounds, reducing desk clearance and portability. Specialized layouts also restrict common features: open-frame designs eliminate sealed side panels for dust protection, while server-oriented chassis drop sliding rail support and drive bays to fit 360mm liquid cooling radiators.
- Fan size and stock cooling: Some models include zero pre-installed fans, requiring you to supply your own 120mm or 140mm cooling units.
- Tower size and weight: Large mid-tower and full-tower enclosures reach up to 25.6 inches tall and 41.2 pounds, requiring dedicated physical space.
- Side panel coverage: Open-frame layouts omit enclosed side panels and sealed filtration to maximize component visibility.
- Lighting hardware: Multiple workstation and server chassis omit RGB illumination hardware entirely in favor of unlit setups.
When matching enclosure length limits with PSU depth, you can compare modular options among the best PC power supplies under 300.
How We Picked PC Cases
You find enclosures in this Under $300 guide selected entirely from published manufacturer specifications. Choices focus on hardware parameters like motherboard support, fan mounts, and radiator clearances. Only one variant per product family appears to maintain variety. Products are not physically handled. Every detail comes straight from published listing data.
The list shows products in stock first. Models move into or out of the guide as listings shift within the Under $300 category. Because data refreshes at least daily, this selection of 15 models stays aligned with current manufacturer specifications throughout 2026.
How to Choose the Right PC Case
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Match Motherboard Form Factor
Check your motherboard form factor before picking an enclosure. Standard ATX boards fit most mid-towers, but broader E-ATX motherboards require wider tray clearances and specific mounting points. Selecting a standard chassis for an E-ATX board can cover cable grommets or collide with drive cages. If your build uses an expansive workstation board, select a case with dedicated E-ATX support like the ASUS ROG Strix Helios RGB Mid-Tower Case. Verify the exact width of your board against internal clearances to ensure clean cable routing.
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Evaluate Included Fan Configurations
Case cooling relies on fan diameter and intake volume. Larger 140mm or 200mm fans move substantial air volume at lower rotational speeds compared to standard 120mm units. Examine whether an enclosure supplies pre-installed fans or requires separate cooling hardware. The ASUS ProArt Full-Tower Case includes dual 200mm intake fans that generate heavy airflow right out of the box. Check the fan sizes, mount locations, and connector types to decide if the stock cooling setup satisfies your thermal targets without buying extra hardware.
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Verify Front Panel Connectivity
Front panel ports dictate everyday convenience when connecting external peripherals and storage drives. Review the exact header configurations on your motherboard to match the front I/O ports. Some chassis offer basic USB 3.0 Type-A ports, while others feature high-speed Type-C ports. The Rosewill Thor Full-Tower Hot-Swap Case provides front Type-C connectivity directly on the chassis. Ensure your motherboard has the appropriate internal USB Type-E or 19-pin headers. Mismatched connections leave front-panel ports inactive or force you to install separate adapter cards.
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Measure Physical Footprint and Weight
High-end enclosures often feature thick steel panels and heavy glass panels. Measure your available desk or floor space against the exterior height, depth, and width dimensions. The Corsair 7000D Airflow Full-Tower Case weighs 41.2 pounds empty, and finished components add significant mass. Heavy, tall cases require sturdy furniture and adequate clearance above the top exhaust vents. If you plan to reposition your machine frequently or keep it on a standard desk surface, verify the total footprint before committing to a heavy chassis.
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Consider Chassis Internal Architecture
Chassis architecture affects component visibility, airflow paths, and thermal management. Standard towers direct intake air straight across your components from front to rear. Open-frame designs expose hardware completely for bench testing and showcase looks, while dual-chamber designs position power supplies behind the motherboard tray to widen the main viewing area. The HYTE Y70 Panoramic ATX Mid-Tower Case utilizes panoramic glass and a dedicated vertical slot configuration. Consider your workspace environment, viewing angles, and dust exposure when deciding between traditional towers and panoramic showcase layouts.
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Identify Chassis Form Factor Purpose
Selecting between standard desktop enclosures and specialized chassis depends on your deployment environment. Desktop towers stand vertically and prioritize ease of desk access, while server enclosures mount directly into standard server racks. The RackChoice 4U Rackmount 360mm Radiator Chassis features an 18.3-inch depth and eight full-height PCIe slots built for server cabinet installation. If your equipment operates inside an enterprise server rack, verify rack depth and rail clearances. For standard office or gaming desks, a traditional tower form factor provides easier port access and setup.
Frequently asked questions
Which cases support back-connect motherboards?
The NZXT H9 Flow RGB+ supports back-connect motherboards directly. This layout lets you route cable connectors through the rear of the motherboard tray to keep your main chamber clean. The dual-chamber chassis accommodates dual 420mm radiators and includes multi-fan units with wraparound glass, giving you high airflow and clear hardware viewing for modern ATX gaming systems.
Can you mount a 420mm radiator in an open-frame case?
Yes, the Thermaltake Core P3 TG Pro Open Frame ATX Case accommodates 420mm radiators. Unlike sealed enclosures, its open-air showcase frame mounts your liquid cooling setup on an exposed bracket without restrictive side panels. The chassis weighs 15.4 pounds and features tempered glass, giving you open component viewing while maintaining dedicated mounting room for full-sized liquid cooling setups.
Which cases offer invertible motherboard trays?
Both the be quiet! Silent Base 802 and the be quiet! Light Base 900 provide invertible tray layouts. An invertible chassis allows you to flip the motherboard orientation, letting you position the system on the left side of your desk while maintaining window visibility. The Silent Base 802 includes three 140mm fans, whereas the Light Base 900 requires you to supply your own fans.
What is the benefit of a dual-chamber PC case?
Dual-chamber cases separate heat-producing components like power supplies and storage drives from your primary motherboard chamber. Models such as the HAVN HS 420 and NZXT H9 Flow RGB+ use this design to improve cooling paths and hide cables. The HAVN HS 420 pairs this dual-chamber layout with curved panoramic glass and support for triple 420mm radiators, giving you a rigid platform for complex liquid cooling loops.
Can you install custom liquid cooling into a 4U rackmount chassis?
Yes, the RackChoice 4U Rackmount Chassis is built specifically to accommodate a 360mm radiator in a standard server rack. It features eight full-height PCIe slots to fit standard add-in cards alongside your liquid cooling loop. While you trade sliding rail compatibility and large internal drive capacity to house the radiator, it allows high-performance workstation cooling inside a standard 19-inch rack footprint.
Which cases support four-slot vertical graphics cards?
The HYTE Y70 Panoramic ATX Mid-Tower Case includes dedicated clearance for 4-slot vertical graphics cards. Its panoramic glass design highlights your GPU while giving you dual 360mm radiator positions at the top and side. Dedicated bottom fan mounts pull fresh air directly into the graphics card intake, preventing your vertically mounted card from choking against the tempered glass panel.
How do cases with 200mm intake fans compare to standard 140mm setups?
Cases with 200mm fans, like the ASUS ProArt Full-Tower, move larger volumes of air at lower rotational speeds than smaller fans. The ProArt includes dual 200mm front intake fans to push airflow across your E-ATX workstation components. By comparison, models like the Corsair 7000D Airflow and be quiet! Silent Base 802 rely on three 140mm fans to balance airflow across your chassis frame.