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Black metal mobile rack with removable tray for 2.5 inch SATA drive in 3.5 inch bay

ICY DOCK

ICY DOCK MB991SK-B 2.5" SATA to 3.5" bay hdd accessory

SKU CH-CTFM-RBY5M MPN MB991SK-B

Mounts one 2.5" SATA drive into a 3.5" bay using a removable metal tray with Eagle-Hook lock and SATA 6Gbps support

  • Conversion tray1 × 2.5 in Drive to 3.5 in Bay
  • Mobile rack drives support1 × 2.5 in Drive to 3.5 in Bay
  • Mobile rack interfaceSATA I/II/III
  • Protection caseSingle Drive
  • Product colorBlack
  • DetailsHost Interface : Single 7pin SATA Drive Fit : Single 2.5 in

Model ToughArmors 1BAY

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Model 1 x 3.5in

  • Fits 2.5″ SATA drives in a 3.5″ bay for compact builds
  • Removable EZ Slide Mini tray enables quick drive swaps
  • SATA 6 Gbps interface delivers full drive throughput
  • Full-metal construction with Eagle-Hook lock secures the drive
  • Single SATA 15-pin connector powers the entire unit

Mobile rack for 2.5" SATA drives

The ICY DOCK MB991SK-B is a full-metal mobile rack that installs a single 2.5" SATA hard drive or SSD into an external 3.5" floppy bay. It supports drives from 5 mm to 15 mm thick and uses the rugged EZ Slide Mini Tray with an Eagle-Hook lock and metal safeguard key for secure retention. A single SATA 15-pin connector powers the entire unit and the tray enables quick swaps between compatible ToughArmor enclosures.

Builders with a free 3.5" front bay

This rack suits system integrators and enthusiasts who want hot-swap convenience for a 2.5" SATA drive without occupying a 5.25" bay or internal 3.5" mount. It is not suitable for M.2 or U.2 form factors, nor for configurations that require more than one drive in the same bay. Users without an accessible external 3.5" opening should consider a different mounting solution.

SATA 6 Gbps interface

The host connection is a single 7-pin SATA port that delivers up to 6 Gbps transfer rates, limited only by the installed drive's own speed. No additional controller or adapter is needed; the rack passes the native SATA I, II or III signal directly to the motherboard or add-in card. This specification determines whether the enclosure matches the available header and the performance ceiling of the storage device.

How it compares

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

Price $55.99
Pricier than about 70% of the 218 comparable items (median $26.99).

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Specifications

Product
Brand nameICY DOCK
Model nameMB991SK-B
Product colorBlack
Storage
Mobile rack drives support1 × 2.5 in Drive to 3.5 in Bay
Ports & slots
Mobile rack interfaceSATA I/II/III
Size & build
Shipping weight0.46 kg
Package size152 × 114 × 36 mm
More details
Conversion tray1 × 2.5 in Drive to 3.5 in Bay
Protection caseSingle Drive

Other versions of this model

5 more in the same range

Questions about this item

Does the MB991SK-B come with the 2.5" drive or do I need to buy it separately?

The MB991SK-B is the rack and tray only; you supply your own 2.5" SATA HDD or SSD.

How do I choose between the SATA I/II/III versions listed for the MB991SK-B?

The rack supports all three SATA generations through the same 7-pin connector; pick any 2.5" SATA drive and it will run at its rated speed.

What does the 6 Gb/s headline figure mean once the MB991SK-B is installed in a real machine?

It is the ceiling of the SATA III link; actual throughput depends on the drive you fit and the host controller.

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