4 Best Montech PC Cases Under $100, Compared
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Finding the best montech PC cases under $100 requires looking at published specs rather than marketing claims. We compared 4 models to help you choose based on actual dimensions, support, and included features. The Montech Air 903 E-ATX Mid-Tower leads this list because it supports E-ATX motherboards and includes pre-installed fans for immediate cooling. This mid-tower chassis measures 19.4 inches in height and 18.8 inches in length, providing ample space for large components. Each pick reflects specific data points from the manufacturer listings. Use this guide to decide which case fits your motherboard size and cooling needs.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Montech Air 903 E-ATX Mid-Tower Best overall | E-ATX builds needing pre-installed fans | Check price of Montech Air 903 E-ATX Mid-Tower on Amazon |
| 2 | Montech XR White Panoramic ATX Case Best budget | white glass showcase builds with large GPUs | Check price of Montech XR White Panoramic ATX Case on Amazon |
| 3 | Montech King 45 Panoramic ATX Mid-Tower Also great | compact ATX builds with high-end cooling | Check price of Montech King 45 Panoramic ATX Mid-Tower on Amazon |
| 4 | Montech TG3 Curved ATX White Best premium | ARGB display builds with ATX boards | Check price of Montech TG3 Curved ATX White on Amazon |
The best fit for you
- You need E-ATX support with pre-installed fans Montech Air 903 E-ATX Mid-Tower It supports E-ATX motherboards and includes pre-installed fans for immediate cooling.
- You want a white showcase for large GPUs Montech XR White Panoramic ATX Case This ATX mid-tower features a panoramic glass design and ample GPU clearance.
- You prefer a compact layout for high-end cooling Montech King 45 Panoramic ATX Mid-Tower The black ATX mid-tower offers a compact interior with strong cooling potential.
- You want ARGB fans included with a curved panel Montech TG3 Curved ATX White It includes four ARGB fans and a curved glass panel for display.
Our 4 picks
Montech Air 903 E-ATX Mid-Tower
Best for: E-ATX builds needing pre-installed fans
- Motherboard Support
- E-ATX
- Case Type
- Mid Tower
- Use
- Gaming
- Dimensions
- 18.8 × 9.05 × 19.4 inches
- Weight
- 15.1 pounds
View on Amazon: Montech Air 903 E-ATX Mid-Tower Affiliate link
This mid-tower case supports E-ATX motherboards and includes pre-installed fans for immediate airflow. Its dimensions are 18.8 inches long, 9.05 inches wide, and 19.4 inches high. The white finish suits modern builds. You get high airflow capacity without extra fan purchases. It fits gaming setups that need space for larger components.
Pros
- Supports E-ATX motherboards
- Pre-installed fans included
- High airflow design
- White color option
Cons
- Mid-tower form factor limits extreme component sizes
- No tempered glass side panel listed in specs
- Weight of 15.1 pounds adds bulk
Good fit if
- You need E-ATX motherboard support
- You want pre-installed cooling fans
- You prefer a white build theme
Skip if
- You require a full-tower chassis
- You need RGB lighting control
- You prefer a black finish
Verdict: Montech Air 903 Max White E-ATX offers E-ATX support and pre-installed fans for high airflow. It suits builders who need room for large motherboards and immediate cooling in a white mid-tower chassis.
Montech XR White Panoramic ATX Case
Best for: white glass showcase builds with large GPUs
- Motherboard Support
- ATX
- Case Type
- Mid Tower
- Side Panel
- Tempered Glass
- Included Fans
- 3x 120 mm ARGB PWM
- Radiator Support
- 360 mm
- Max GPU Length
- 420 mm
View on Amazon: Montech XR White Panoramic ATX Case Affiliate link
The Montech XR is a white ATX mid-tower case featuring a panoramic front and side tempered glass design. It includes three pre-installed 120 mm ARGB PWM fans and supports up to nine fans or a 360 mm top radiator. The chassis offers 420 mm GPU clearance and 175 mm CPU cooler clearance. Magnetic filters on the top, side, and bottom simplify maintenance. This model suits gamers seeking a showcase-style build with strong airflow and lighting.
Pros
- Panoramic front and side tempered glass panels
- Three pre-installed 120 mm ARGB PWM fans
- 420 mm GPU clearance for large graphics cards
- Removable magnetic filters for easy cleaning
- USB-C and two USB 3.0 ports on I/O
Cons
- Mid-tower size may not fit E-ATX motherboards
- Only three fans included despite support for nine
- No mention of software control for ARGB lighting
Good fit if
- You want a white case with a glass showcase design
- You need 420 mm clearance for large GPUs
- You prefer pre-installed fans with ARGB lighting
Skip if
- You require E-ATX motherboard support
- You need a mesh front panel for maximum airflow
- You prefer a black chassis color
Verdict: The Montech XR Panoramic ATX White is a strong fit for gamers who want a white, glass-heavy showcase case with ample GPU clearance. It offers a balanced cooling layout and convenient I/O ports for daily use.
Montech King 45 Panoramic ATX Mid-Tower
Best for: compact ATX builds with high-end cooling
- Motherboard Support
- ATX
- Case Type
- Mid-Tower
- Side Panel
- Curved Tempered Glass
- Radiator Support
- 360mm
- Max GPU Length
- 435mm
- Compatible Device
- Radiator
View on Amazon: Montech King 45 Panoramic ATX Mid-Tower Affiliate link
The Montech King 45 is an ATX mid-tower case featuring a dual-chamber design and a curved tempered glass side panel. It supports 360 mm radiators up to 84 mm thick and oversized GPUs. The compact footprint measures 17.7 x 9.6 x 18.2 inches. This case suits builders who want a clean, professional look with strong bottom-to-top chimney airflow for high-performance hardware.
Pros
- Curved tempered glass side panel for a panoramic view
- Dual-chamber design hides cables and maintains airflow
- Supports 360 mm top-mounted radiators
- Fits oversized GPUs in a compact mid-tower footprint
Cons
- Limited motherboard support to ATX only
- Heavier build at 17.9 pounds
- No mention of included case fans in the data
Good fit if
- You want a clean, dual-chamber aesthetic
- You need a compact case for high-end components
- You prefer bottom-to-top chimney airflow
Skip if
- You require E-ATX motherboard support
- You need a larger tower size
- You prioritize a lightweight build under 15 pounds
Verdict: Montech King 45 Panoramic ATX Mid-Tower fits builders who value a compact, clean interior with strong cooling potential for ATX systems.
Montech TG3 Curved ATX White
Best for: ARGB display builds with ATX boards
- Motherboard Support
- ATX, Micro-ATX, Mini-ITX
- Side Panel
- Curved Glass
- Included Fans
- 4 ARGB Fans
- Radiator Support
- 360mm
- Max GPU Length
- 430mm
- Connectivity
- Type-C
View on Amazon: Montech TG3 Curved ATX White Affiliate link
The Montech TG3 Curved ATX White case features a 15° curved glass side panel and includes four ARGB fans. It supports ATX, Micro-ATX, and Mini-ITX motherboards with up to 430 mm GPU clearance. The design highlights hardware with top, bottom, and PSU shroud lighting. It offers top I/O ports and supports up to nine fans for cooling.
Pros
- Includes 4 ARGB fans for immediate lighting
- 15° curved glass side panel for clear viewing
- Supports ATX, Micro-ATX, and Mini-ITX boards
- 430 mm maximum GPU length clearance
Cons
- Heavier build at 22.5 pounds
- Smaller internal volume than dual-chamber designs
- No mention of wireless control or app support
Good fit if
- You want pre-installed ARGB lighting
- You prefer a curved glass aesthetic
- You use ATX or smaller motherboards
Skip if
- You need dual-chamber airflow separation
- You require wireless fan control
- You prefer a lighter case for moving
Verdict: Montech TG3 Curved ATX White offers strong visual appeal with four included ARGB fans and a curved glass panel. It is ideal for builders with ATX or smaller boards who want a display-ready case without extra fan purchases.
Specifications side by side
| Spec | Montech Air 903 E-ATX Mid-Tower | Montech XR White Panoramic ATX Case | Montech King 45 Panoramic ATX Mid-Tower | Montech TG3 Curved ATX White |
|---|---|---|---|---|
| Motherboard Support | E-ATX | ATX | ATX | ATX, Micro-ATX, Mini-ITX |
| Case Type | Mid Tower | Mid Tower | Mid-Tower | not stated |
| Side Panel | not stated | Tempered Glass | Curved Tempered Glass | Curved Glass |
| Included Fans | not stated | 3x 120 mm ARGB PWM | not stated | 4 ARGB Fans |
| Radiator Support | not stated | 360 mm | 360mm | 360mm |
| Max GPU Length | not stated | 420 mm | 435mm | 430mm |
| Tower Size | Mid-Tower | Mid-Tower | Mid-Tower | not stated |
| Use | Gaming | Gaming | not stated | not stated |
| Lighting | not stated | ARGB | not stated | ARGB |
| Connectivity | not stated | not stated | not stated | Type-C |
| Compatible Device | not stated | Radiator | Radiator | Radiator |
| Dimensions | 18.8 × 9.05 × 19.4 inches | 17.1 × 8.98 × 17.7 inches | 17.7 × 18.2 × 9.6 inches | 18.3 × 9.41 × 20.8 inches |
| Weight | 15.1 pounds | 14.5 pounds | 17.9 pounds | 22.5 pounds |
| Color | White | White | Black | White |
| Model | AIR903MAXW | XR-W | KING45B | TG3CurvedW |
| Size | not stated | XR | not stated | not stated |
Key Specs for Choosing Montech Cases
-
Check Motherboard Compatibility
Verify your motherboard size fits the case support. The Montech Air 903 accepts E-ATX boards, offering extra room for large components. Most other models, like the XR and King 45, support standard ATX. If you have a smaller micro-ATX board, these cases still work but may leave unused space. Always match your board to the listed support to avoid installation issues.
-
Assess Tower Dimensions
Measure your desk space against case height and depth. The Air 903 stands 19.4 inches tall and 18.8 inches deep. The XR is slightly shorter at 17.7 inches high. The King 45 has a unique horizontal orientation, measuring 18.2 inches wide. Ensure your desk can accommodate these dimensions. Mid-tower designs generally fit standard desks, but larger footprints require more clearance.
-
Review Included Fans
Check if the case includes pre-installed fans. The Air 903 comes with fans already mounted, saving you immediate purchase costs. The TG3 Curved includes four ARGB fans for enhanced airflow and lighting. Other models may not list included fans, requiring you to buy them separately. Pre-installed fans provide immediate cooling upon assembly. This feature is valuable for builders who want a plug-and-play experience.
-
Select Side Panel Style
Decide between tempered glass and mesh panels. The XR White features a panoramic glass design for a showcase look. The TG3 Curved also uses curved glass for visibility. The Air 903 likely uses mesh for maximum airflow, though specific material is not detailed here. Glass panels display internal components but may trap heat. Mesh panels improve cooling but hide internal hardware. Choose based on your priority for aesthetics or temperature control.
-
Consider Lighting Features
Identify if you need addressable RGB lighting. The XR and TG3 Curved models support ARGB fans. The TG3 includes four such fans for synchronized effects. The Air 903 does not list lighting specs, focusing instead on airflow. If you want customizable RGB effects, choose a model with ARGB support. Otherwise, a non-lighted case may offer better value for pure performance without extra wiring.
Frequently asked questions
Which Montech case supports E-ATX motherboards?
The Montech Air 903 E-ATX Mid-Tower supports E-ATX boards. It measures 19.4 inches in height and 18.8 inches in length. This model is designed for builders who need extra room for large motherboards. It also includes pre-installed fans to help with airflow right away.
Does the Montech XR White have ARGB lighting?
Yes, the Montech XR White Panoramic ATX Case features ARGB lighting. It is built as a showcase unit with a panoramic glass panel. The case weighs 14.5 pounds and measures 17.7 inches in height. It provides ample space for large graphics cards inside.
What is the weight of the Montech TG3 Curved case?
The Montech TG3 Curved ATX White weighs 22.5 pounds. It is the heaviest option on this list. The case measures 20.8 inches in height and 18.3 inches in length. It comes with four included ARGB fans for immediate cooling setup.
Can I fit an E-ATX board in the Montech XR?
No, the Montech XR White Panoramic ATX Case only supports standard ATX motherboards. It is not designed for E-ATX boards. If you need support for larger E-ATX motherboards, you should look at the Air 903 model instead. The XR is optimized for standard ATX builds.
Which Montech case is best for a white build?
The Montech Air 903 and TG3 Curved are both available in white. The Air 903 is a mid-tower that supports E-ATX boards. The TG3 Curved offers a curved glass panel and includes four ARGB fans. Both are suitable for white-themed gaming builds.
Does the Montech King 45 come with fans?
The provided data does not mention pre-installed fans for the Montech King 45 Panoramic ATX Mid-Tower. It is a compact black case that supports standard ATX motherboards. You may need to purchase fans separately for optimal airflow. The case weighs 17.9 pounds.
What are the dimensions of the Montech Air 903?
The Montech Air 903 E-ATX Mid-Tower measures 19.4 inches in height, 18.8 inches in length, and 9.05 inches in width. It weighs 15.1 pounds. These dimensions allow it to fit standard mid-tower spaces while providing room for E-ATX motherboards.



