Looking Beyond the Phanteks Enthoo Pro 2 Server? 6 Alternatives Worth a Look
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The Phanteks Enthoo Pro 2 Server handles extreme workstation builds with its SSI-EEB support and eleven PCI slots. If you need these specific server-grade specs, this full tower is a strong choice. However, you might look for phanteks enthoo pro 2 server alternatives if your needs differ. You may require a smaller form factor or standard ATX motherboard support instead of the larger SSI-EEB standard.
These alternatives were chosen because their specifications overlap with the original in key areas. The list includes options for 2U rackmount setups, high-storage 4U enclosures, and E-ATX NAS builds. You might also prefer a mid-tower with better airflow or quieter operation. Each option here addresses a different aspect of server or high-density computing. You can compare the dimensions, drive bays, and cooling capabilities to find the right fit for your system.
Our top pick: Phanteks Enthoo Pro 2 Server Full Tower.
Comparing Phanteks Enthoo Pro 2 Alternatives
SilverStone 2U ATX Rackmount Server Chassis
The SilverStone 2U ATX Rackmount Server Chassis replaces the Phanteks Enthoo Pro 2 Server’s full tower form factor with a compact 2U enclosure. You gain a dedicated rackmount solution with dual 5.25-inch bays, ideal for space-constrained server racks. However, you sacrifice the Phanteks’ extensive SSI-EEB motherboard support and eleven PCI slots. This chassis only supports ATX boards and lacks hot-swap drive capabilities. It is a practical choice for users who prioritize standard rackmount dimensions and specific drive bays over the high-density expansion options of the original full tower.
RackChoice 4U Rackmount Server Chassis
The RackChoice 4U Rackmount Server Chassis offers a secure, high-storage solution in a 4U format, differing significantly from the Phanteks Enthoo Pro 2 Server’s open full tower design. You trade the Phanteks’ ability to hold up to fifteen fans and eleven PCI slots for a focused rackmount build. This chassis supports standard ATX or microATX boards, limiting motherboard compatibility compared to the SSI-EEB support of the original. It is best for users who prioritize drive capacity and secure rack integration over the advanced airflow and expansion capabilities found in the Phanteks full tower.
Rosewill Thor NAS Full Tower
The Rosewill Thor NAS Full Tower provides E-ATX support and extensive drive capacity, positioning it as a specialized alternative to the Phanteks Enthoo Pro 2 Server. While the Phanteks supports SSI-EEB boards and eleven PCI slots, the Rosewill focuses on high-density NAS and server builds. You gain Type-C connectivity and a design tailored for dense storage, but you give up the specific server-grade motherboard and PCI slot expansion of the original. This chassis suits builders who need E-ATX compatibility and significant drive space rather than the extreme workstation expansion of the Phanteks.
Fractal Design Torrent Compact ATX Mid-Tower
The Fractal Design Torrent Compact ATX Mid-Tower shifts from a server-focused full tower to a compact mid-tower designed for airflow and RGB lighting. You lose the Phanteks Enthoo Pro 2 Server’s SSI-EEB support, eleven PCI slots, and massive interior space. In return, you gain a smaller footprint with high airflow performance and visual appeal. This chassis supports only ATX motherboards and is intended for gaming or compact builds. It is a practical choice for users who prioritize cooling performance and aesthetics over the high-density expansion and server-grade compatibility of the original full tower.
be quiet! Silent Base 802 ATX Midi Tower
The be quiet! Silent Base 802 ATX Midi Tower offers modular design and noise isolation, contrasting with the Phanteks Enthoo Pro 2 Server’s open, high-airflow full tower design. You trade the Phanteks’ SSI-EEB support and eleven PCI slots for flexible internal layouts and quieter operation. This chassis supports ATX motherboards and is built for users who value sound dampening over maximum expandability. It is suitable for builders who need a versatile ATX case with modular features, rather than the specialized server-grade expansion and open interior of the Phanteks full tower.
Lian Li Lancool 205 Mesh Mid-Tower Case
The Lian Li Lancool 205 Mesh Mid-Tower Case provides ARGB lighting and mesh airflow in a mid-tower form factor, differing from the Phanteks Enthoo Pro 2 Server’s full tower server design. You lose the Phanteks’ SSI-EEB motherboard support, eleven PCI slots, and extensive drive capacity. This chassis supports only ATX boards and is aimed at gamers who value pre-installed lighting and standard airflow. It is a practical mid-tower for standard ATX builds, offering visual appeal and cooling rather than the high-density expansion and server-grade specifications of the original full tower.
Quick picks
Our 7 picks
Phanteks Enthoo Pro 2 Server Full Tower
Best for: High-density server and workstation builds
- Motherboard Support
- SSI-EEB
- Case Type
- Full Tower
- Side Panel
- Closed Panel
- Radiator Support
- 480mm, 360mm
- Use
- Server
- Dimensions
- 22.1 × 9.45 × 22.8 inches
View on Amazon: Phanteks Enthoo Pro 2 Server Full Tower Affiliate link
This full tower chassis supports SSI-EEB motherboards and offers 11 PCI slots. You get space for up to 15 fans, including three positioned over the CPU and PCI areas. The open interior accommodates 480mm radiators and storage for 10 HDDs or 11 SSDs. It measures 22.8 inches in height and weighs 29.1 pounds. This build suits high-density server or workstation projects requiring extensive expansion.
Pros
- Supports SSI-EEB motherboards
- 11 PCI slots for expansion
- Space for up to 15 fans
- Supports 480mm and 360mm radiators
Cons
- Closed side panel limits visibility
- Heavy at 29.1 pounds
- Large footprint requires ample floor space
Good fit if
- You need 11 PCI slots for server hardware
- You require SSI-EEB motherboard support
- You want extensive fan mounting options
Skip if
- You prefer tempered glass side panels
- You need ATX or Micro-ATX motherboards
- You want a lightweight portable case
Verdict: Phanteks Enthoo Pro 2 Server Full Tower is a heavy-duty chassis for users needing 11 PCI slots and SSI-EEB support. It fits server builds that prioritize expansion and airflow over aesthetics.
SilverStone 2U ATX Rackmount Server Chassis
Best for: 2U rackmount setups with 5.25-inch bays
- Case Type
- 2U Rackmount
- Motherboard Support
- ATX
- Use
- Server
- Dimensions
- 22.8 × 16.9 × 3.48 inches
- Weight
- 15 pounds
View on Amazon: SilverStone 2U ATX Rackmount Server Chassis Affiliate link
This SilverStone 2U rackmount chassis supports ATX motherboards and power supplies up to 180mm deep. It includes dual 5.25-inch drive bays and holds up to five 3.5-inch hard drives or one 2.5-inch SSD. The unit features a built-in bracket for three 80mm fans and a USB 3.1 Gen1 port. It suits users needing a compact, industrial-grade server enclosure.
Pros
- Supports ATX motherboards
- Dual 5.25-inch drive bays
- Holds up to five 3.5-inch HDDs
- Built-in bracket for three 80mm fans
Cons
- Limited to 2U rack height
- No hot-swap drive bays mentioned
- Requires external fan mounting
Good fit if
- You need a 2U rackmount form factor
- You require dual 5.25-inch drive bays
- You plan to use an ATX power supply
Skip if
- You require hot-swap drive bays
- You need a standard desktop tower
- You require pre-installed case fans
Verdict: SilverStone 2U Rackmount Server Chassis fits users who need a dedicated 2U enclosure with dual 5.25-inch bays. It is not suitable for those requiring hot-swap drive capabilities.
RackChoice 4U Rackmount Server Chassis
Best for: high-storage 4U server builds
- Motherboard Support
- ATX, microATX
- Case Type
- 4U Rack mount
- Included Fans
- 1 x 12cm
- Use
- Server
- Dimensions
- 17.7 × 19 × 7 inches
- Weight
- 26.4 pounds
View on Amazon: RackChoice 4U Rackmount Server Chassis Affiliate link
This RackChoice 4U rackmount chassis supports ATX and microATX motherboards in a 19-inch wide, 7-inch tall frame. It includes one pre-installed 12cm fan and offers extensive drive options with three 5.25-inch, eight 3.5-inch, and two 2.5-inch bays. The aluminum front bezel features a security keylock. It suits users needing a dedicated server build with high storage capacity in a standard rack form factor.
Pros
- Supports ATX and microATX motherboards
- Includes three 5.25-inch, eight 3.5-inch, and two 2.5-inch drive bays
- Front bezel has a security keylock and handle
- Pre-installed 12cm fan with dust filter
Cons
- Limited motherboard support to ATX and microATX only
- Does not support HDDs larger than 14TB
- Only one fan is pre-installed
Good fit if
- You need a 4U rackmount chassis for server applications
- You require extensive internal drive bays for storage
- You want a secure front bezel with a keylock
Skip if
- You need E-ATX or SSI-EEB motherboard support
- You prefer a case with multiple pre-installed fans
- You need support for high-capacity drives over 14TB
Verdict: RackChoice 4U Rackmount Server Chassis is a practical option for users who need a secure, high-storage rackmount solution. It fits those building servers with standard ATX or microATX boards who prioritize drive capacity over advanced cooling setups.
Rosewill Thor NAS Full Tower
Best for: High-density NAS and server builds
- Motherboard Support
- E-ATX
- Case Type
- Full Tower
- Included Fans
- 1x 140mm PWM
- Max GPU Length
- 400mm
- Use
- Server
- Connectivity
- Type-C
View on Amazon: Rosewill Thor NAS Full Tower Affiliate link
The Rosewill Thor NAS is a full tower chassis designed for E-ATX motherboards and heavy storage workloads. It supports up to 11 3.5-inch HDDs or 13 2.5-inch SSDs. The case includes one 140mm PWM fan and a USB 3.2 Gen Type-C port. It accommodates GPUs up to 400mm long. This unit suits users building NAS systems or AI servers that require dense drive configurations.
Pros
- Supports E-ATX motherboards
- Holds 11 3.5-inch HDDs or 13 2.5-inch SSDs
- Includes USB 3.2 Gen Type-C port
- Accepts GPUs up to 400mm in length
Cons
- Includes only one 140mm fan
- Large physical dimensions at 20.9 inches tall
- No mention of hot-swap drive bays
Good fit if
- You need a chassis for E-ATX motherboards
- You are building a high-density NAS or server
- You require support for large graphics cards
Skip if
- You prefer a compact ATX or micro-ATX build
- You need multiple pre-installed fans for cooling
- You want a smaller footprint for your desk
Verdict: The Rosewill Thor NAS Full Tower is a specialized chassis for users needing E-ATX support and extensive drive capacity. It fits those building dense NAS or server systems who can accommodate its large size.
Fractal Design Torrent Compact ATX Mid-Tower
Best for: Airflow-focused ATX builds with RGB lighting
- Motherboard Support
- ATX
- Case Type
- Mid Tower
- Side Panel
- Tempered Glass
- Use
- Gaming
- Lighting
- RGB
- Connectivity
- Type-C
View on Amazon: Fractal Design Torrent Compact ATX Mid-Tower Affiliate link
This mid-tower case supports ATX motherboards and features tempered glass side panels. It includes three 180 mm front fans and an open grille design for high airflow. The interior is streamlined to accommodate large components. It is suitable for builders prioritizing cooling performance and RGB lighting in a compact form factor.
Pros
- Supports ATX motherboards in a mid-tower chassis
- Includes three 180 mm front fans for maximum intake
- Features tempered glass side panels
- Open grille design enhances air intake
- Integrated ARGB effects on the PSU shroud
Cons
- Limited to ATX motherboard support only
- Heavier build at 20.9 pounds
- Smaller internal volume compared to full towers
Good fit if
- You need strong airflow for high-end GPUs
- You want integrated RGB lighting without extra hubs
- You prefer a compact mid-tower size
Skip if
- You require E-ATX or larger motherboard support
- You need extensive drive bays
- You prefer a heavier, larger chassis
Verdict: Fractal Design Torrent Compact RGB offers high airflow and RGB lighting in a compact mid-tower chassis. It fits builders who prioritize cooling performance and visual appeal over expandability for larger motherboards.
be quiet! Silent Base 802 ATX Midi Tower
Best for: Quiet ATX builds with modular needs
- Motherboard Support
- ATX
- Case Type
- Midi Tower
- Included Fans
- 3 fans
- Radiator Support
- 420mm
- Connectivity
- Type-C
- Dimensions
- 21.2 × 11.1 × 21.8 inches
View on Amazon: be quiet! Silent Base 802 ATX Midi Tower Affiliate link
The be quiet! Silent Base 802 Black is an ATX midi tower designed for noise reduction and modularity. It includes three installed fans and features interchangeable top covers for airflow or silence. The decoupled motherboard tray allows for inverted layouts. You will find thick insulation mats inside to dampen sound. This case suits builders who prioritize quiet operation without sacrificing internal customization.
Pros
- Includes three pre-installed fans
- Interchangeable top cover for airflow or silence
- Decoupled motherboard tray for inverted layouts
- USB 3.2 Gen 2 Type C on IO panel
Cons
- ATX support limits E-EBB compatibility
- Heavier build at 27.8 pounds
- No mention of included front panel USB 2.0 ports
Good fit if
- You need a quiet case with modularity
- You want an inverted motherboard layout
- You prefer USB-C connectivity
Skip if
- You require E-EBB motherboard support
- You want a full tower size
- You prefer a lighter chassis
Verdict: The be quiet! Silent Base 802 Black offers solid noise isolation and flexible internal layouts for ATX builders. It fits users who value quiet operation and modular design over maximum size or server-grade compatibility.
Lian Li Lancool 205 Mesh Mid-Tower Case
Best for: ARGB enthusiasts needing mesh airflow
- Motherboard Support
- ATX, Micro ATX, Mini-ITX
- Case Type
- Mid-Tower
- Side Panel
- Tempered Glass
- Use
- Gaming
- Lighting
- ARGB
- Dimensions
- 29.2 × 29.2 × 11.6 inches
View on Amazon: Lian Li Lancool 205 Mesh Mid-Tower Case Affiliate link
This mid-tower case combines a mesh front panel with tempered glass side visibility. It includes three pre-installed ARGB fans for airflow and lighting. The chassis supports ATX, Micro ATX, and Mini-ITX motherboards. You get magnetic dust filters and dedicated space for cable management. It suits builders who want customizable RGB effects and strong ventilation without complex server features.
Pros
- Pre-installed 3 ARGB PWM fans for immediate lighting and airflow
- Mesh front panel improves air ventilation while reducing dust intake
- Tempered glass side panel showcases internal components
- Supports ATX, Micro ATX, and Mini-ITX motherboards
Cons
- ARGB control is limited to a physical button on the top panel
- No motherboard sync for lighting modes unless manually set to mode 8
- Mid-tower form factor limits total component count compared to full towers
Good fit if
- You want pre-installed ARGB fans for immediate visual impact
- You need a case that supports multiple motherboard sizes
- You prefer mesh airflow over solid panels
Skip if
- You require software-controlled RGB lighting from your motherboard
- You are building a large server with many drive bays
- You need a rackmount chassis for data center use
Verdict: Lian Li LANCOOL 205 Mesh RGB ATX fits gamers who value pre-installed lighting and mesh airflow. It is a practical mid-tower for standard ATX builds.
Specifications side by side
| Spec | Phanteks Enthoo Pro 2 Server Full Tower | SilverStone 2U ATX Rackmount Server Chassis | RackChoice 4U Rackmount Server Chassis | Rosewill Thor NAS Full Tower | Fractal Design Torrent Compact ATX Mid-Tower | be quiet! Silent Base 802 ATX Midi Tower | Lian Li Lancool 205 Mesh Mid-Tower Case |
|---|---|---|---|---|---|---|---|
| Motherboard Support | SSI-EEB | not stated | ATX, microATX | E-ATX | ATX | ATX | ATX, Micro ATX, Mini-ITX |
| Case Type | Full Tower | 2U Rackmount | 4U Rack mount | Full Tower | Mid Tower | Midi Tower | Mid-Tower |
| Side Panel | Closed Panel | not stated | not stated | not stated | Tempered Glass | not stated | Tempered Glass |
| Included Fans | not stated | not stated | 1 x 12cm | 1x 140mm PWM | not stated | 3 fans | not stated |
| Radiator Support | 480mm, 360mm | not stated | not stated | not stated | not stated | 420mm | not stated |
| Max GPU Length | not stated | not stated | not stated | 400mm | not stated | not stated | not stated |
| Tower Size | not stated | not stated | not stated | Full-Tower | Mid-Tower | not stated | Mid-Tower |
| Fan Size | not stated | not stated | not stated | 140mm | not stated | not stated | not stated |
| Use | Server | Server | Server | Server | Gaming | not stated | Gaming |
| Lighting | not stated | not stated | not stated | not stated | RGB | not stated | ARGB |
| Connectivity | not stated | not stated | not stated | Type-C | Type-C | Type-C | not stated |
| Dimensions | 22.1 × 9.45 × 22.8 inches | 22.8 × 16.9 × 3.48 inches | 17.7 × 19 × 7 inches | 20.1 × 9.1 × 20.9 inches | 17.7 × 8.74 × 18.4 inches | 21.2 × 11.1 × 21.8 inches | 29.2 × 29.2 × 11.6 inches |
| Weight | 29.1 pounds | 15 pounds | 26.4 pounds | not stated | 20.9 pounds | 27.8 pounds | 15.5 pounds |
| Color | Closed Panel | silver | black | Black | RGB Black - Light tint | Black | LANCOOL 205 MESH RGB - ATX - Black |
| Model | PH-ES620PC_BK02 | CAS-SILV-SST/RM23502 | not stated | THOR NAS | FD-C-TOR1C-02 | BG039 | G99OE764X00 |
| Size | not stated | 2U | not stated | E-ATX | ATX | not stated | Mid-tower Case |
Frequently asked questions
Which case is best for high-density server builds?
The Phanteks Enthoo Pro 2 Server is the top choice for high-density server and workstation builds. It supports SSI-EEB motherboards and offers eleven PCI slots. This full tower measures 9.45 by 22.1 inches. It prioritizes expansion and airflow over aesthetic appeal for demanding server configurations.
What is a good 2U rackmount alternative?
The SilverStone 2U ATX Rackmount Server Chassis is ideal for dedicated 2U rackmount setups. It features dual 5.25-inch bays for storage or optical drives. This silver chassis measures 16.9 by 22.8 inches. Note that it does not support hot-swap drive capabilities, so plan your storage accordingly.
Is there a budget-friendly 4U rackmount option?
The RackChoice 4U Rackmount Server Chassis serves as a practical budget option for high-storage builds. It accommodates standard ATX or microATX boards while prioritizing drive capacity. This black chassis measures 19 by 17.7 inches. It is a secure solution for users who need storage over advanced cooling setups.
Which case supports E-ATX motherboards for NAS builds?
The Rosewill Thor NAS Full Tower is designed for high-density NAS and server builds. It explicitly supports E-ATX motherboards and includes Type-C connectivity. This black tower measures 9.1 by 20.1 inches. It is specialized for users who need extensive drive capacity and can accommodate a large chassis size.
Can I find a mid-tower with good airflow?
The Fractal Design Torrent Compact ATX Mid-Tower offers high airflow in a compact form factor. It features tempered glass side panels and RGB lighting for visual appeal. This black chassis measures 8.74 by 17.7 inches. It fits builders who prioritize cooling performance and aesthetics over expandability for larger motherboards.
Which case is best for quiet ATX builds?
The be quiet! Silent Base 802 ATX Midi Tower is built for quiet operation with modular needs. It provides solid noise isolation and flexible internal layouts for ATX motherboards. This black chassis measures 11.1 by 21.2 inches. It suits users who value silence and design flexibility over maximum size or server-grade compatibility.
Is there a mid-tower with ARGB lighting?
The Lian Li Lancool 205 Mesh Mid-Tower Case is tailored for ARGB enthusiasts needing mesh airflow. It comes with pre-installed lighting and a tempered glass side panel. This black chassis measures 11.6 by 29.2 inches. It is a practical mid-tower choice for standard ATX gaming builds.