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Black metal enclosure holding two 2.5 inch drives in a single 3.5 inch bay

ICY DOCK

ICY DOCK MB742SPB 2 x 2.5" SAS/SATA HDD/SSD Mobile Rack for 3.5" Bay hdd accessory

SKU CH-M1YD-0ZH6X MPN MB742SPB

Holds two 2.5″ SATA or SAS drives in a single external 3.5″ bay with tool-less trays and all-metal ventilation

  • ColorBlack
  • Conversion Tray2 x 2.5" Drive to 3.5" Bay
  • Mobile Rack Drives Support2 x 2.5" Drives to 3.5" Bay
  • Mobile Rack InterfaceSATA I/II/III/SAS
  • Protection CaseMultiple Drives
  • Compatible Products2.5"

Model 2 x 2.5in (SATA)

  • 2 x 2.5in (SATA)
  • 4 x 2.5in
  • 1 Pack

Struck-through versions exist but are not stocked here.

Option Express Cages 2Bay

  • Express Cages 2Bay
  • Express Cages 2Bay + HDD
  • Express Cages 4Bay
  • Express Cages 6Bay
  • Express Cages 2 Bay + ODD

Struck-through versions exist but are not stocked here.

  • Fits two 2.5" SATA or SAS drives in one 3.5" bay
  • Tool-less ExpressTray caddies enable fast drive swaps without screws
  • All-metal chassis with full ventilation keeps drives cool under load
  • Enhanced latch and grip mechanism secures drives during transport or vibration
  • Supports RAID 1 for data redundancy when paired with a RAID controller

Compact dual-drive enclosure

The ICY DOCK MB742SPB fits two 2.5 inch SATA or SAS solid-state drives or hard drives into a single external 3.5 inch bay. Tool-less caddies with a single-piece latch hold 5 mm, 7 mm and 9.5 mm drives securely without screws. Rugged metal housing and all-around ventilation keep drives cool under sustained workloads.

Ideal for space-constrained builds

System integrators working with small-form-factor PCs, embedded boxes, in-vehicle computers or home servers can add redundant or mirrored storage without sacrificing a 5.25 inch bay. Builders who need more than two drives or who lack a free external 3.5 inch opening should consider a larger enclosure.

9.5 mm maximum drive height

Only 2.5 inch drives 9.5 mm thick or thinner are supported by the ExpressTray caddies. Verify each drive’s z-height before purchase to ensure proper fit and latch engagement.

Highlights

  • Fits two 2.5" SATA or SAS drives in one 3.5" bay
  • Tool-less ExpressTray caddies enable fast drive swaps without screws
  • All-metal chassis with full ventilation keeps drives cool under load
  • Enhanced latch and grip mechanism secures drives during transport or vibration
  • Supports RAID 1 for data redundancy when paired with a RAID controller

Specifications

BrandICY DOCK
ModelMB742SPB
ColorBlack
Conversion Tray2 x 2.5" Drive to 3.5" Bay
Mobile Rack Drives Support2 x 2.5" Drives to 3.5" Bay
Mobile Rack InterfaceSATA I/II/III/SAS
Protection CaseMultiple Drives
Compatible Products2.5"
SpecificationsSupport Drive Size: 2.5" SSD / HDD
Compatible Drive Type: SATA / SAS (SAS host required / Single channel)
Number of Drives: 2
Max Drive Height: 9.5mm
Drive Bay: 1 x external 3.5" drive bay
Host Interface: 2 x SATA 7pin
Power Input: 1 x 15 pin SATA power connector
Transfer Rate: Up to 6Gbps (Depending on hard drive speed)
Support HDD Capacity: No Limitation
Structure / Material: Metal with partial plastic
Support Hot-Swap: Yes
FeaturesRugged metal housing with durable ABS caddies for maximum security and protection
Fits 2x 5mm, 7mm, & 9.5mm 2.5" SATA HDD/SSDs, and installs into a single 3.5" external bay (floppy bay)
Multi-Flow Technology – provides excellent passive cooling
Accommodates 2.5" drives with 5mm, 7mm & 9.5mm height
Active Power Technology (APT) - only powers up if there is drive installed in the drive bay
Advanced ExpressCage drive caddy MB742TP-B with a new drive-gripping mechanism, strengthened
single-piece latch, and tool-less drive installation
Removable drive caddy system for easy maintenance
Sup
Shipping weight0.32 kg
Package size142 × 109 × 38 mm

Questions about this item

Should I pick the 2.5" version or a different capacity for my 3.5" bay?

This unit is built for two 2.5" drives up to 9.5 mm tall and fits a single external 3.5" bay, so choose it when you need dual SATA or SAS storage in that slot.

What does the dual-drive layout mean once installed in a real machine?

You gain two independent SATA or SAS drives in one floppy bay, ready for RAID 0, RAID 1 or JBOD configurations with a compatible controller.

The spec lists SATA I/II/III and SAS — what speed does that actually cap at?

SATA III tops out at 6 Gb/s per drive, while SAS speed depends on the host controller; the backplane itself does not limit either interface.

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