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ExpressCage MB324SP-1B

4 Bay 2.5” SATA/SAS HDD SSD Hot-Swap Mobile Rack Enclosure with Tool-Less SSD Mounting Tray for 5.25” Drive Bay (4 x SATA 7pin)
Product Details
  • Tool-Less Removable Tray Design for NAS & Homelab Storage
    The ICY DOCK ExpressCage MB324SP-1B is a 4-bay 2.5” SATA/SAS SSD/HDD mobile rack that fits into a standard 5.25” optical drive bay, ideal for NAS servers, homelab systems, compact workstations, and small business servers. It combines high-density storage with ICY DOCK’s proven tool-less removable tray design, allowing quick hot-swaps and easy maintenance while securely supporting drives from 5–12.5mm in height.

    Designed for users who value flexibility and serviceability, the MB324SP-1B enables effortless drive upgrades, swaps, and replacements without opening the chassis - perfect for testing different drive types, expanding RAID volumes, or managing backups. Its universal 5.25” form factor maximizes storage density in small or repurposed chassis, delivering a reliable and space-efficient solution for DIY NAS builders and homelab enthusiasts.
  • High-Density Storage in Any 5.25" Optical Drive Bay
    The MB324SP-1B transforms a single 5.25” bay into four individually hot-swappable 2.5” drive bays. Supporting SATA III 6Gb/s and single-channel SAS drives (SAS host required), this enclosure is ideal for creating compact RAID arrays or high-capacity NAS volumes. With the ability to power all four drives using a single 15-pin SATA power connector, cable clutter is minimized - allowing for cleaner builds and improved airflow.
  • ExpressTray with Tool-Less & Screw Mounting
    The MB324SP-1B features ICY DOCK’s ExpressTray system, designed to simplify drive installation and removal with a fully tool-less process. Drives can be secured to the tray in seconds - just align the front end of the drive with the built-in pins, press the connector side down, and it locks firmly into place. To remove, pull the rear latch tab and lift the drive upward.
  • For environments requiring additional stability, such as systems exposed to vibration or mobile enclosures, the tray also includes optional screw holes for extra drive retention. With its reinforced latching mechanism, the ExpressTray ensures reliable performance and long-term durability even under frequent drive swaps.
  • Active Cooling with Adjustable Fan Control

    A rear-mounted 40mm cooling fan provides direct airflow across all four drives, supported by ventilation holes around the chassis and trays. Users can select from three fan modes using a jumper:

    • HIGH – Maximum cooling performance
    • LOW – Quiet operation for home or office environments
    • OFF – Fan disabled for silent operation in low-power or low-heat setups
  • The stock fan can be replaced with any standard 40mm 2-pin or 3-pin fan, offering flexible cooling options. Integrated cable management keeps long fan cables neatly organized, further improving system airflow.
  • Each drive bay is equipped with a dedicated activity LED, providing clear visual feedback when drives are in use. The soft-blue illumination is bright enough to monitor status without causing eye strain. In addition, the enclosure supports locking-latch SATA data and power connectors, ensuring secure cable connections that prevent accidental disconnection during operation. (Requires cables with locking-latch support.)
  • Optional EZConvert MB703M2P-B for M.2 SATA SSD
    If you are looking to use a M.2 SATA SSD with the ExpressCage MB324SP-1B, pair it with our EZConvert MB703M2P-B M.2 SSD to 2.5” form factor adapter featuring tool-less adjustable locker to secure your M.2 in place. To learn more about EZConvert MB703M2P-B please click HERE.
Main Features
Supports up to 4 x 2.5" SATA/SAS HDDs or SSDs into a single 5.25" bay
   
Compatible with SATA 6Gbps or SAS 3.0 12Gbps (Single channel)
   
Hot-swappable bays for quick and convenient drive replacement
   
Accommodates 2.5" drives with 5mm, 7mm, 9.5mm, and 12.5mm Height
   
Active Power Technology (APT) - only powers up if there is drive installed in the drive bay
   
ExpressTray system: tool-less, removable trays designed for easy installation while maintaining the stability of tray-based designs
   
Optional bottom-mounted screw holes for enhanced drive stability
   
Individual blue LED indicators for each bay
   
User-upgradeable 40mm fan for effective drive cooling
   
Supports both 2-pin and 3-pin fan connectors for aftermarket fan upgrades
   
Single 15-pin SATA power connector powers all four drives
   
Locking latch design for both 7-pin SATA connector and 15-pin power connectors to ensure secure connections
   
Three-speed fan control: High / Low / Off
   
Durable metal enclosure with heavy-duty ABS trays and door latches
   
Ideal for power users, system builders, and applications requiring space-efficient 2.5" hot-swap storage solutions
Specification
Model Number: MB324SP-1B
Color: Black
Support Drive Size: 2.5" SSD / HDD
Compatible Drive Type: SATA / single channel SAS (SAS host required)
Number of Drives: 4
Max Drive Height: 12.5mm
Drive Bay: 1 x 5.25" half height drive bay
Host Interface: 4 x SATA 7pin
Power Input: 1 x 15 pin SATA power connector
Transfer Rate: SATA 3.0 up to 6Gbps / SAS 3.0 up to 12Gbps
Support HDD Capacity: No limitation
Drive Cooling: 1 x 40mm fan
RAID Function: N/A
Structure / Material: Metal with partial plastic
Support Hot-Swap: Yes
Drive Security : N/A
Product Dimension (L x W x H): 140.5 x 145.8 x 41.3mm
Product Net Weight: 440g
Package Gross Weight: 516g
Drive Activity LED Indication: Drive power: solid blue; Drive access: flashing blue
Package Contents: 1 - Device, 1 - user manual, 18 - screw
SATA Connector Insertion Rate: 10,000
Humidity: 5%~65% RH
Operating Temperature: 0°C to 60°C (32°F to 140°F)
Storage Temperature: -35°C to 70°C (-31°F to 158°F)
Compliance: CE, UKCA, RoHS, REACH
Warranty: 3 years

Compatible Drive Tray (Caddy):

  • MB324TP-B

Related Products:

Related Products Series:

  • Tool-less+Tray Enclosures
  • Tray-less Enclosures


FAQ

Q: The mounting screws for the device seem to be too short to secure the device onto my system, what should I do?

A: For computer cases that have a thick metal sheet, the included mounting screws (M3*2.5L) may not fully secure the device. Please use longer screws (M3*4L) to secure the device or contact us at tech@icydock.com for replacement screws.


Q: Can I replace the cooling fan attached to the device? Will doing that void the warranty?

A:The cooling fan we used has been thoroughly tested with the drive enclosure to ensure it functions properly and supports the fan speed control (for select models). Therefore, we suggest our customers keep the original fan for the best result. However, we understand the stock fan may not be suitable for all the applications, so we elected to honor the warranty when 3rd party fan is using. The warranty may void if the 3rd party fan causes electrical damage to the device, though.


Q:  Which specification should I check before buying the 3rd party cooling fan?

A:The following information is the fan specification requirement and compatible fan models for MB324SP-B

 

Fan Dimension (LxWxH) 40 x 40 x 10mm 40 x 40 x 20mm 
Connector Type 3 Pin Wafer
Rated Voltage (VDC) 12V DC
Rated Current (A) < 0.12A (127mA)
Screw Specification Phillips Flat Head - M3 x 15mm - Steel
(Came with stock fan)
Phillips Flat Head - M3 x 25mm – Steel
(Not Included)

 

Compatible fan models

 

(without test, use it at your own risk)

 


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