Looking Beyond the RROYJJ 4U 24-Bay Hot-Swap Server? 6 Alternatives Worth a Look

How these alternatives compare

SilverStone 4U Rackmount Server Chassis

The SilverStone SST-RM400 supports Micro-ATX motherboards, whereas the RROYJJ chassis accommodates larger standard ATX boards. This makes the SilverStone a better fit for compact server builds that do not require full-size expansion slots. It weighs 23.8 pounds, which is lighter than the 39.4-pound RROYJJ unit. The SilverStone offers secure drive bays but lacks the extensive hot-swap convenience of the RROYJJ’s twenty-four bays. You should choose this if you prioritize motherboard flexibility and physical security over maximum storage density. The grey finish and 17.6-inch width provide a standard rack footprint. It trades high-capacity storage for a more manageable form factor and motherboard compatibility.

RackChoice 4U Rackmount Server Chassis

This RackChoice chassis is designed for standard ATX builds, similar to the RROYJJ, but focuses on secure, high-density storage within a rack environment. It weighs 26.4 pounds, significantly less than the RROYJJ’s 39.4 pounds. The dimensions are 19 inches wide and 17.7 inches long, offering a slightly different footprint. While the RROYJJ emphasizes hot-swappable drive access for rapid maintenance, this RackChoice model prioritizes physical security and robust construction for static storage setups. It is a solid choice if you need reliable ATX support without the weight of the RROYJJ. You get high capacity without the complex hot-swap mechanisms, making it suitable for users who value security and stability over frequent drive changes.

RackChoice 4U Rackmount 360mm Radiator Chassis

The RackChoice liquid cooling chassis is built for E-ATX motherboards and supports 360mm radiators, a capability the RROYJJ lacks entirely. It weighs only 15.3 pounds, much lighter than the RROYJJ. This chassis sacrifices the twenty-four drive bays for advanced cooling options and support for larger processors. It is ideal for builders who need high-performance thermal management for E-ATX hardware rather than massive storage arrays. The 19-inch width and 18.3-inch depth provide space for liquid cooling loops. You should pick this if your server workload requires intense cooling for powerful components. It gives up storage density to deliver superior thermal performance and compatibility with modern high-end server CPUs.

WEBTB 4U Lockable Rackmount Server Case

The WEBTB case is a secure, steel-built option for standard ATX servers, weighing 19.8 pounds compared to the RROYJJ’s 39.4 pounds. It focuses on physical security and basic expansion rather than hot-swap drive flexibility. The WEBTB model is lighter and simpler, lacking the extensive hot-swap infrastructure of the RROYJJ. It suits users who prioritize a robust, secure chassis for static server builds. The black finish and standard 4U dimensions make it a straightforward rackmount solution. You choose this if you need a reliable ATX case with strong physical security features. It trades the convenience of hot-swappable drives for a lighter, more secure, and simpler design that is easier to handle during installation.

Phanteks Enthoo Pro 2 Server Full Tower

The Phanteks Enthoo Pro 2 Server Edition is a full tower designed for SSI-EEB motherboards, offering eleven PCI slots. It weighs 29.1 pounds and measures 9.45 inches wide, differing significantly from the RROYJJ’s 4U rackmount form factor. This case provides massive fan capacity and large radiator support, which the RROYJJ does not offer. It is built for builders who need extensive expansion capabilities and high airflow rather than a standard rackmount footprint. You should select this if your server requires SSI-EEB compatibility and maximum expansion slots. It gives up the rackmount convenience and twenty-four drive bays of the RROYJJ in favor of a robust, high-expansion tower design for complex server configurations.

Rackchoice 4U Rackmount Server Chassis

This RackChoice chassis supports Mini-ITX motherboards, making it suitable for compact 4U rackmount builds. It weighs less than the RROYJJ and offers ample drive space for small form factor systems. The 19-inch width and 16.5-inch depth provide a standard rack footprint. It is ideal for users needing a compact server that still fits in a 4U rack. You choose this if your build relies on Mini-ITX hardware and requires basic cooling for standard server tasks. It trades the high-density storage and hot-swap features of the RROYJJ for a more compact, efficient design tailored to small motherboards. This option is best for specialized, space-constrained server environments where Mini-ITX is the preferred platform.

Quick picks

Our 7 picks

1 Best overall

RROYJJ 4U 24-Bay Hot-Swap Server Chassis

Best for: High-capacity hot-swap storage setups

Case Type

4U Rackmount

Included Fans

3x 120mm, 2x 80mm

Use

Server

Dimensions

25.6 × 16.9 × 6.93 inches

Weight

39.4 pounds

View on Amazon: RROYJJ 4U 24-Bay Hot-Swap Server Chassis Affiliate link

This 4U rackmount chassis provides 24 hot-swappable SATA or SAS drive bays for high-capacity storage. It includes three 120mm middle fans and two 80mm rear fans for airflow. The unit measures 25.6 by 16.9 by 6.93 inches and weighs 39.4 pounds. It suits users needing extensive drive space in a standard rack format.

Pros

• 24 hot-swappable SATA/SAS drive bays
• 3x 120mm and 2x 80mm included fans
• Six internal SFF-8087 Mini SAS backplanes
• Standard 4U rackmount design

Cons

• Heavy at 39.4 pounds
• Limited fan count compared to competitors
• No mention of lockable bays

Good fit if

• You need maximum drive capacity
• You require hot-swappable storage
• You use standard 4U racks

Skip if

• You need lockable drive bays
• You prefer liquid cooling support
• You want more included fans

Verdict: RROYJJ 4U Rackmount Server Case offers 24 drive bays and basic fan support. It fits users prioritizing storage density over advanced cooling or security features.

2 Best micro-atx

SilverStone 4U Rackmount Server Chassis

Best for: Micro-ATX server builds needing secure drive bays

Motherboard Support

SSI-CEB, ATX, mATX, Mitx

Case Type

4U Rackmount

Use

Server

Dimensions

16.9 × 17.6 × 6.93 inches

Weight

23.8 pounds

View on Amazon: SilverStone 4U Rackmount Server Chassis Affiliate link

This SilverStone 4U rackmount chassis supports SSI-CEB, ATX, micro-ATX, and mini-ITX motherboards. It includes three 5.25-inch front bays for flexible drive installation. The unit features a key-locked front door for security and a USB 3.1 Gen 1 port. It accommodates standard profile PCIe slots and redundant power supplies. This case suits users needing micro-ATX compatibility in a server environment.

Pros

• Supports SSI-CEB, ATX, mATX, and mini-ITX motherboards
• Includes three 5.25-inch front drive bays
• Features a key-locked front door for security
• Provides a USB 3.1 Gen 1 interface

Cons

• Heavier build at 23.8 pounds
• Lacks hot-swap drive bays found in other 4U options
• Only supports three standard profile PCIe slots

Good fit if

• You need micro-ATX motherboard support in a 4U rack
• You require physical security with a key lock
• You prefer fixed 5.25-inch drive bays

Skip if

• You require hot-swap drive capability
• You need more than three PCIe expansion slots
• You prefer a lighter chassis under 20 pounds

Verdict: SilverStone 4U Rackmount Case offers micro-ATX flexibility and secure storage for server builds. It fits users prioritizing drive bay variety and physical security over hot-swap convenience.

3 Also great

RackChoice 4U Rackmount Server Chassis

Best for: Secure, high-capacity 4U rack storage

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

The RackChoice 4U rackmount server case offers 19-inch width and ATX motherboard support. It includes three 5.25-inch front bays and eight 3.5-inch internal slots. The build uses zinc-coated steel with a keylocked aluminum front bezel. One 12cm fan is included. This chassis suits users needing secure, high-capacity storage in a standard rack environment.

Pros

• Three 5.25-inch front drive bays
• Eight 3.5-inch internal drive slots
• Keylocked aluminum front bezel for security
• Includes one 12cm pre-installed fan
• Zinc-coated steel main chassis

Cons

• Does not support HDDs larger than 14TB
• Only one 12cm fan included
• No 2.5-inch drive bays listed in main configuration

Good fit if

• You need multiple 3.5-inch drive slots
• You require a keylocked front panel
• You are building a 4U rackmount server

Skip if

• You plan to use hard drives over 14TB
• You need more than one included fan
• You require 2.5-inch drive support

Verdict: RackChoice 4U Rackmount Server Case provides secure, high-density storage for standard ATX builds. It fits users who prioritize drive capacity and physical security in a rack environment.

4 Best premium

RackChoice 4U Rackmount 360mm Radiator Chassis

Best for: liquid-cooled E-ATX builds with minimal storage

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 Affiliate link

This RackChoice 4U rackmount chassis accommodates liquid cooling radiators up to 360mm for high-heat builds. You get compatibility across E-ATX, ATX, Micro-ATX, and Mini-ITX motherboards, along with eight full-height expansion slots. It suits you if you prioritize liquid-cooled processing power over dense drive storage, as internal capacity is limited to two 3.5-inch drives.

Pros

• Supports liquid cooling radiators up to 360mm
• Fits motherboards up to E-ATX size
• Includes 8 full-height PCI/PCIe expansion slots
• Compact 18.3-inch chassis depth

Cons

• Offers only two internal 3.5-inch drive bays
• Does not support sliding rails

Good fit if

• You need to fit a 360mm liquid cooling radiator in a 4U rackmount case.
• You use an E-ATX motherboard with multiple full-height add-in cards.
• You plan to mount your server chassis on a rack shelf.

Skip if

• You require more than two 3.5-inch storage drives.
• You need sliding rail installation in your server rack.

Verdict: RackChoice 4U Liquid Cooling Server Chassis fits builders needing 360mm radiator cooling for E-ATX hardware instead of high-density storage bays.

5 Best budget

WEBTB 4U Lockable Rackmount Server Case

Best for: secure standard ATX server builds

Motherboard Support

ATX, M-ATX, Mini-ITX

Case Type

4U

Included Fans

1x 120mm

Use

Server

Dimensions

16.9 × 17.7 × 7 inches

Weight

19.8 pounds

View on Amazon: WEBTB 4U Lockable Rackmount Server Case Affiliate link

This WEBTB 4U rackmount chassis supports ATX, M-ATX, and Mini-ITX motherboards. It features a lockable front door with a foam filter for dust protection and security. The case includes one 120mm fan and offers seven PCI slots for expansion. Constructed from SGCC steel, it weighs 19.8 pounds. You should consider this unit if you need a secure, standard-sized server enclosure for a rack environment.

Pros

• Lockable front door with key
• Supports ATX, M-ATX, and Mini-ITX boards
• Includes one 120mm fan
• Seven PCI expansion slots
• Foam dust filter on front

Cons

• Only includes one fan; two 80mm positions require separate purchase
• No hot-swap drive bays included
• Front panel only has USB 2.0 connectors

Good fit if

• You need a secure, lockable server chassis
• You are building a standard ATX server
• You want a steel case with a dust filter

Skip if

• You require hot-swappable drive bays
• You need USB 3.0 connectivity
• You want multiple fans included

Verdict: WEBTB 4U Rackmount Server Case is a secure, steel-built option for standard ATX servers. It suits users who prioritize physical security and basic expansion over drive flexibility or modern I/O ports.

6 Also great

Phanteks Enthoo Pro 2 Server Full Tower

Best for: SSI-EEB server builds with high expansion needs

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 is built for extreme workstation and server systems. It supports SSI-EEB motherboards and offers 11 PCI slots for extensive expansion. The open interior accommodates up to 15 fans, including three positioned over the CPU and PCI areas. You can install radiators up to 480mm or 360mm for cooling. It weighs 29.1 pounds and measures 22.8 inches in height.

Pros

• Supports SSI-EEB motherboards for high-end server builds
• Provides 11 PCI slots for maximum expansion
• Open interior allows up to 15 fan installations
• Accepts radiators up to 480mm in size

Cons

• Closed panel design limits direct airflow visibility
• Heavier at 29.1 pounds than standard cases
• Only supports SSI-EEB, not standard ATX

Good fit if

• You need 11 PCI slots for expansion cards
• You use SSI-EEB motherboards for servers
• You want to install up to 15 case fans

Skip if

• You require standard ATX motherboard support
• You prefer a tempered glass side panel
• You need a lighter chassis for frequent moves

Verdict: Phanteks Enthoo Pro 2 Server Edition is a robust full tower for SSI-EEB systems needing 11 PCI slots. It fits builders prioritizing massive fan capacity and large radiator support over standard form factors.

7 Best mini-itx

Rackchoice 4U Rackmount Server Chassis

Best for: Mini-ITX 4U rackmount server builds

Motherboard Support

E-ATX, ATX, Micro-ATX, Mini-ITX

Case Type

4U Rackmount

Included Fans

3x 12cm

Use

Server

Dimensions

16.5 × 19 × 7 inches

View on Amazon: Rackchoice 4U Rackmount Server Chassis Affiliate link

This Rackchoice 4U rackmount chassis supports Mini-ITX, Micro-ATX, ATX, and E-ATX motherboards. It includes three 12cm front fans and two 8cm rear fans for airflow. You get eight 3.5-inch drive bays or a mix of 3.5 and 2.5-inch slots. The unit measures 19 inches wide and 7 inches high. It is designed for server use with standard ATX power supplies.

Pros

• Supports Mini-ITX and E-ATX motherboards
• Includes three 12cm front fans
• Offers eight 3.5-inch drive bays
• Provides seven full-height expansion slots

Cons

• Limited to standard ATX power supplies
• No mention of lockable drive bays
• Only two front USB 3.0 ports

Good fit if

• You need a 4U rackmount for Mini-ITX builds
• You require multiple 3.5-inch drive bays
• You want pre-installed front cooling fans

Skip if

• You require hot-swappable drive bays
• You need support for larger server motherboards
• You prefer integrated liquid cooling options

Verdict: Rackchoice 4U Mini-ITX Server Chassis fits users needing a compact 4U rackmount for small form factor builds. It offers ample drive space and standard cooling for basic server tasks.

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See also

• supermicro x11dpi nt server motherboard alternatives
• dynatron r16 1u server CPU alternatives