6 Best Alternatives to the WEBTB 4U Lockable Rackmount Server (2026)

How these alternatives compare to WEBTB

SilverStone 4U Rackmount Server Chassis

The SilverStone SST-RM400 is a grey 4U chassis weighing 23.8 pounds. It is slightly narrower and lighter than the WEBTB model. This unit focuses on micro-ATX support rather than full ATX compatibility. You get a locked enclosure similar to the WEBTB design, ensuring physical security for your server hardware. The internal dimensions are tight, making it ideal for small form factor builds. If you need a secure rackmount case specifically for mATX boards, this is a direct alternative. It lacks the extensive PCI slot expansion of the WEBTB but offers a robust build for compact server deployments.

RROYJJ 4U 24-Bay Hot-Swap Server Chassis

The RROYJJ chassis is significantly larger, measuring 25.6 inches in length and weighing 39.4 pounds. It is designed for high-capacity storage with 24 drive bays. This is a major difference from the WEBTB, which offers minimal drive expansion. The RROYJJ fits standard racks but does not mention a visible lock mechanism. You should choose this if storage density is your priority. The WEBTB is better for general-purpose server tasks with ATX motherboards. The RROYJJ sacrifices security features for massive storage potential. It is heavier and bulkier, requiring more rack space. This alternative suits data-heavy applications where drive count matters more than motherboard size or physical locking mechanisms.

RackChoice 4U Rackmount Server Chassis

The RackChoice 4U chassis features three 5.25-inch drive bays, offering extensive storage options for legacy and modern drives. It weighs 26.4 pounds and is black. This model prioritizes drive capacity over pre-installed cooling. The WEBTB includes a 120mm fan, whereas this RackChoice unit may lack included fans. You should pick this alternative if you need multiple drive bays in a locked rack environment. It fits users who value storage flexibility over integrated cooling solutions. The dimensions are similar to the WEBTB, but the internal layout differs to accommodate the drive bays. This case is best for mixed-drive storage servers that require physical security without the cooling infrastructure of the original.

RackChoice 4U Rackmount 360mm Radiator Chassis

The RackChoice liquid cooling chassis supports 360mm radiators and EATX motherboards. It weighs only 15.3 pounds, making it much lighter than the WEBTB. This unit is designed for builders running large systems with liquid cooling. You should choose this if processor cooling is more important than multi-drive storage. The WEBTB focuses on standard ATX support and physical security. This RackChoice model sacrifices some drive expansion for advanced thermal management. It fits standard racks but lacks the lockable door feature of the WEBTB. This alternative is ideal for high-performance server builds that require robust cooling solutions for EATX boards in a 4U form factor.

Phanteks Enthoo Pro 2 Server Full Tower

The Phanteks Enthoo Pro 2 is a full tower server chassis, not a 4U rackmount unit. It weighs 29.1 pounds and supports SSI-EEB motherboards. This is a significant difference from the WEBTB, which is designed for standard rack installation. You should pick this if you need extensive cooling options and expansion slots for dense server builds. It is not suitable for rack mounting. The Phanteks offers a different form factor entirely. It is ideal for workstation builds requiring many expansion slots. The WEBTB is the better choice for standard rack environments. This alternative suits users who need a non-rackmount solution with superior airflow and motherboard compatibility for large enterprise boards.

Rackchoice 4U Rackmount Server Chassis

The RackChoice Mini-ITX chassis supports boards from Mini-ITX to E-ATX. It is black and weighs less than the WEBTB. This unit offers flexible motherboard support and extensive drive bays. You should choose this if you need a versatile 4U chassis for various board sizes. The WEBTB is limited to ATX and smaller boards. This RackChoice model provides more internal flexibility for drive expansion. It fits standard racks but lacks the specific lockable door feature mentioned for the WEBTB. This alternative is best for server builds requiring multiple storage drives and expansion slots with broader motherboard compatibility. It offers a different internal layout optimized for mixed hardware configurations.

Quick picks

Our 7 picks

1 Best overall

WEBTB 4U Lockable Rackmount Server Case

Best for: secure 4U server enclosures

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

This 4U rackmount chassis supports ATX, M-ATX, and Mini-ITX motherboards. It includes a lockable front door with a foam filter for dust reduction and security. The case features a single 120mm fan and two additional 80mm mounting positions. It weighs 19.8 pounds and fits standard server racks. This unit suits users needing a secure, expandable server enclosure.

Pros

• Lockable front door with key
• Supports ATX, M-ATX, and Mini-ITX
• Includes one 120mm fan
• Two additional 80mm fan positions

Cons

• Only one fan included in the box
• No hot-swap drive bays listed
• Front USB ports are USB 2.0

Good fit if

• You need a lockable server chassis
• You use standard ATX or smaller boards
• You want a 4U rackmount form factor

Skip if

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

Verdict: WEBTB 4U Lockable Rackmount Server provides a secure, lockable enclosure for ATX and smaller motherboards. It fits users who prioritize physical security and standard rack compatibility over pre-installed cooling or drive expansion.

2 Best micro-atx

SilverStone 4U Rackmount Server Chassis

Best for: Locked micro-ATX server builds

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

This SilverStone 4U rackmount chassis supports SSI-CEB, ATX, micro-ATX, and Mini-ITX motherboards. It includes three 5.25-inch front drive bays and a lockable front door for security. The unit features a 5Gbps USB 3.1 Gen 1 port and accepts standard profile PCIe cards. It measures 17.6 by 16.9 by 6.93 inches and weighs 23.8 pounds. It suits users needing flexible motherboard options in a locked server enclosure.

Pros

• Supports SSI-CEB, ATX, mATX, and Mini-ITX motherboards
• Includes three 5.25-inch front drive bays
• Features a lockable front door for security
• Provides a 5Gbps USB 3.1 Gen 1 port

Cons

• Heavier at 23.8 pounds compared to open frame alternatives
• Limited to standard profile PCIe slots
• No mention of hot-swap drive bays in the data

Good fit if

• You need a locked chassis for sensitive server hardware
• You plan to install micro-ATX or Mini-ITX boards
• You require dedicated 5.25-inch drive bays

Skip if

• You need hot-swappable drive bays
• You prefer a lighter, open frame design
• You require support for EEB motherboards

Verdict: SilverStone 4U Rackmount with mATX Support offers a secure, locked enclosure with versatile motherboard compatibility. It is a solid choice for small form factor server builds requiring physical security and front access ports.

3 Best premium

RROYJJ 4U 24-Bay Hot-Swap Server Chassis

Best for: high-capacity storage servers

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

This RROYJJ 4U rackmount chassis offers 24 hot-swappable SATA or SAS drive bays for high-capacity storage. It includes a 3x120mm and 2x80mm fan configuration for airflow. The unit weighs 39.4 pounds and measures 25.6 by 16.9 by 6.93 inches. You should choose this case if you need extensive drive capacity in a standard rack format.

Pros

• 24 hot-swappable SATA/SAS drive bays
• Includes 3x120mm and 2x80mm fans
• Supports SFF-8087 Mini SAS backplane
• Standard 4U rackmount design

Cons

• Heavy at 39.4 pounds
• Large footprint at 25.6 inches long
• No mention of lockable front panel

Good fit if

• You need maximum drive capacity
• You use hot-swap SAS drives
• You have a standard 4U rack

Skip if

• You require a lockable front
• You have limited rack space
• You prefer lighter chassis weight

Verdict: RROYJJ 4U Rackmount Server Case is best for users needing 24 drive bays. It fits standard racks but lacks a visible lock mechanism.

4 Best budget

RackChoice 4U Rackmount Server Chassis

Best for: Mixed drive storage in locked racks

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

This RackChoice 4U rackmount chassis is built for server deployments requiring mixed storage formats. It features three external 5.25-inch bays, eight internal 3.5-inch bays, and two 2.5-inch slots. The unit supports ATX and microATX motherboards within a 19x7x17.7-inch aluminum and steel frame. It includes one pre-installed 12cm fan and front USB 3.0 ports. This model suits users needing versatile drive expansion in a locked rack environment.

Pros

• Three external 5.25-inch drive bays
• Eight internal 3.5-inch drive bays
• ATX and microATX motherboard support
• Front access USB 3.0 ports
• Security keylock on front bezel

Cons

• Does not support HDDs larger than 14TB
• Only one 12cm fan pre-installed
• Requires standard ATX PS-2 power supply

Good fit if

• You need multiple 5.25-inch drive bays
• You require a locked rackmount chassis
• You use ATX motherboards

Skip if

• You need support for 14TB+ hard drives
• You require pre-installed case fans
• You need built-in USB-C ports

Verdict: RackChoice 4U Rackmount Server with 3x5.25 Bays offers extensive storage options for legacy and modern drives. It fits users who prioritize drive capacity and security over pre-installed cooling.

5 Best 360mm radiator

RackChoice 4U Rackmount 360mm Radiator Chassis

Best for: liquid-cooled EATX rackmount systems

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 server chassis mounts into standard 19-inch racks and supports liquid cooling radiators up to 360mm. It accommodates motherboards from Mini-ITX up to EATX and provides eight full-height PCI expansion slots. With two internal 3.5-inch drive bays, it suits builds focused on high-performance liquid-cooled hardware rather than mass drive storage. You install it on a rack shelf.

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 18.3-inch depth fits typical server racks

Cons

• Limits internal storage to two 3.5-inch drive bays
• Does not support sliding rails and requires a rack shelf

Good fit if

• You need 360mm liquid cooling radiator support in a 4U enclosure.
• You run an EATX motherboard with up to eight full-height expansion cards.

Skip if

• You need more than two 3.5-inch storage drives.
• You require sliding rails instead of a fixed rack shelf.

Verdict: RackChoice 4U Liquid Cooling Server Chassis fits builders running large EATX systems with 360mm AIO liquid coolers. It works best when you prioritize processor cooling over multi-drive storage arrays.

6 Also great

Phanteks Enthoo Pro 2 Server Full Tower

Best for: SSI-EEB 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

The Phanteks Enthoo Pro 2 Server Edition is a full tower chassis designed for SSI-EEB motherboards. It supports up to 15 fans and large radiators, including 480mm and 360mm sizes. The open interior accommodates 11 PCI slots and extensive storage. This case suits users building high-performance workstations or server systems that require robust cooling and expansion capabilities.

Pros

• Supports SSI-EEB motherboards for server-grade builds
• Fits up to 15 fans for advanced airflow
• Accommodates 480mm and 360mm radiators
• Provides 11 PCI slots for expansion

Cons

• Weighs 29.1 pounds, making it heavy to move
• Uses a closed side panel instead of tempered glass
• Dimensions are large at 22.8 inches tall

Good fit if

• You need SSI-EEB motherboard support
• You require 11 PCI slots for expansion
• You want to install up to 15 fans

Skip if

• You prefer a standard ATX motherboard
• You want a tempered glass side panel
• You need a lightweight case under 20 pounds

Verdict: Phanteks Enthoo Pro 2 Server Edition fits builders who need SSI-EEB support and extensive cooling options. It is ideal for dense server or workstation builds requiring many expansion slots.

7 Best mini-itx

Rackchoice 4U Rackmount Server Chassis

Best for: Flexible motherboard and drive bay support

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

This Rackchoice 4U rackmount chassis supports E-ATX, ATX, Micro-ATX, and Mini-ITX motherboards. It includes three pre-installed 12cm front fans and two 8cm rear fans for airflow. The case offers eight 3.5-inch drive bays plus three additional 3.5-inch or two 3.5-inch and two 2.5-inch bays. It features seven full-height expansion slots and two front USB 3.0 ports. It is a practical option for users needing flexible storage and motherboard support in a 19-inch rack.

Pros

• Supports Mini-ITX, Micro-ATX, ATX, and E-ATX motherboards
• Includes three 12cm front fans and two 8cm rear fans
• Provides eight 3.5-inch drive bays plus additional 3.5-inch or 2.5-inch slots
• Features seven full-height expansion slots

Cons

• Requires a standard ATX PS-2 power supply (not included)
• Depth is 420mm without the handle, which may limit fit in shallow racks
• Only two front USB 3.0 ports are available

Good fit if

• You need a 4U rackmount case that supports Mini-ITX or larger motherboards
• You require multiple 3.5-inch drive bays for storage
• You are building a server with seven full-height expansion cards

Skip if

• You require a pre-installed power supply
• You need more than two front USB ports
• You are installing the case in a rack with less than 420mm of depth

Verdict: Rackchoice 4U Rackmount Server Case fits users who need a versatile 4U chassis with extensive drive bays and support for Mini-ITX through E-ATX boards. It is ideal for server builds requiring multiple storage drives and expansion slots.

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Frequently asked questions