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Black metal cage holding four 2.5 inch drive trays and one slim optical bay for 5.25 inch slot

ICY DOCK

ICY DOCK MB604SPO-B 4 x 2.5" SAS/SATA SSD/HDD & Slim ODD Backplane Cage hdd accessory

SKU CH-WXPR-VR31T MPN MB604SPO-B

Converts one 5.25" bay into four hot-swap 2.5" SAS/SATA drive slots plus a slim optical drive bay with a 40 mm cooling fan

  • Conversion tray4 × 2.5 in Drive to 5.25 in Bay
  • Mobile rack drives support4 × 2.5 in SAS/SATA SSD/HDD & (Ultra) Slim ODD Backplane Cag
  • Mobile rack interfaceSATA I/II/III/SAS
  • Protection caseMultiple Drives
  • Product colorBlack
  • For use with2.5 in (6.35 cm)
  • Hot-swap four drives without tools thanks to removable trays
  • Fits four 2.5" SAS/SATA drives up to 9.5 mm and one slim optical drive
  • Full-metal steel chassis built for industrial and commercial use
  • 40 mm configurable fan with ventilation keeps drives cool
  • Individual status LEDs show each drive's activity at a glance

Rugged 5.25" cage for four 2.5" drives

The ToughArmor MB604SPO-B fits a single external 5.25" bay and accepts four 2.5" SAS or SATA SSDs and HDDs up to 9.5 mm thick. Heavy-duty steel construction is rated for industrial, military and medical environments. A single Slim or Ultra-Slim optical drive can also be installed in the same unit.

Hot-swap trays with vibration protection

Each drive mounts on a removable tray that locks into the backplane, enabling hot-swap operation when the host supports it. Anti-vibration design and EVA foam spacers reduce mechanical stress in mobile or rack-mounted systems. The cage requires a SAS host connection for SAS drives and provides individual status LEDs per bay.

User-configurable 40 mm cooling fan

A built-in 40 mm fan and ventilation holes draw air across all four drives during sustained workloads. Fan speed can be adjusted to balance airflow against acoustic output in noise-sensitive deployments. Steel chassis and tray design dissipate heat without relying on a single high-RPM burst.

How it compares

Measured against everything we stock in Drive Brackets & Mounting Kits, at today’s prices. Recalculated every night.

Price $105.99
Pricier than about 83% of the 218 comparable items (median $26.99).

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Specifications

Product
Brand nameICY DOCK
Model nameMB604SPO-B
Product colorBlack
Storage
Mobile rack drives support4 × 2.5 in SAS/SATA SSD/HDD & (Ultra) Slim ODD Backplane Cage for External 5.25 in Bay
Ports & slots
Mobile rack interfaceSATA I/II/III/SAS
Size & build
Shipping weight1.36 kg
Package size305 × 229 × 102 mm
Compatibility
For use with2.5 in (6.35 cm)
In the box
In the boxDevice, User Manual, Screws, EVA foam spacer
More details
Conversion tray4 × 2.5 in Drive to 5.25 in Bay
Protection caseMultiple Drives

Questions about this item

How many 2.5" drives fit in the 5.25" bay before height becomes a limit?

The cage holds four drives up to 9.5 mm tall each in the single 5.25" bay.

What happens to noise and heat when the 40 mm fan runs continuously?

The user-configurable 40 mm fan and ventilation holes keep drive temperatures stable during all-day operation.

Which host interface must the system already provide for the SAS drives to function?

A 6 Gb/s SAS host connection is required; the backplane also accepts SATA 600 host links.

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