What type of drives is this product compatible with?

This product is compatible with single 2.5" SATA I/II/III HDD or SSD drives with a height of 7-15mm.

What kind of warranty is provided with this product?

The product comes with an industry-leading 5 years limited warranty.

What does the LED indication mean on this device?

The LED indication on this device includes a green LED for device power and an amber LED for drive activity.

How is the cooling managed in this device?

The device manages cooling through metal heat dispersion.

Can this device fit into any 3.5" bay?

Yes, this device fits into a 3.5" drive bay.

What are you doing NewEgg? You show 4/5 stars from 165 reviews, until I click on the reviews to read them, then you say no reviews, and the 165 reviews claim disappears.

I don't know what Newegg is doing, but I can say that this product has worked for the 165 computers that I have built for my customers. It is a great Drive Bay for Raid applications. Enough Said.

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ICYDOCK;MB991SK-B;MB991SK-B Engineering Graphic Unit: mm - Icy Dock

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Icy DocK MB991SK-B | 2.5" SATA HDD & SSD Mobile Rack for External 3.5" Drive Bay | ToughArmor

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Model: ToughArmors 1BAY

ToughArmors 1BAY-SAS
ToughArmors 1BAY
ToughArmors 2BAY
ToughArmors 2BAY+ODD
ToughArmors 4BAY-SAS
ToughArmors 2BAY-RAID
ToughArmors 3BAY
ToughArmors 1BAY+LOCK
ToughArmors 2BAY+LOCK
ToughArmors Slim ODD
ToughArmors 4BAY - Lite
ToughArmors Slim ODD+LOCK
ToughArmors Slim ODD MinSATA
ToughArmors Ultra Slim ODD
ToughArmors NVMe 4BAY
ToughArmors NVMe 1BAY
ToughArmors 16BAY

Option: 1 x 3.5in

1-Bay (2.5in SATA/SAS)
4-Bay (2.5in SATA/SAS)
2-Bay (2.5in SATA)
1 x 3.5in
1 x 5.25in
2-Bay 3.5"
1-Bay
ToughArmor Slim ODD MinSATA
ToughArmor Ultra Slim ODD
ToughArmor NVMe 4 Bay
ToughArmor 16 Bay

Fits 1 x 5mm to 15mm 2.5" SATA HDD or SSD in external 3.5" drive bay.
Removable EZ Slide Mini Tray system for easy maintenance.
Supports SATA 6Gbps
Single SATA 15 Pin to power entire device.
Industry-leading 5 years limited warranty with exceptional customer support

Overview

Specs

Reviews (3)

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Introducing the Icy Dock ToughArmor MB991SK-B 2.5" SATA Mobile Rack solution for use in external 3.5" drive bay (Floppy bay). It is a smaller form factor device built specifically for systems with small real estate to work with. Using a rugged heavy duty metal construction, it is capable to withstand the harshest enterprise type environments. The drive is fully secured by our proven technologies such as, the Eagle-Hook lock system and metal 2-segment safeguard key. Our rugged full metal EZ Slide Mini Tray allows interchangeability of data between multiple systems with other ToughArmor products.

ICY DOCK ToughArmor MB991SK-B 2.5" SATA HDD/SSD Full Metal Mobile Rack in 1 x 3.5" Device Bay

Model
Brand	ICY DOCK
Model	MB991SK-B
Color	Black

Details
Conversion Tray	1 x 2.5" Drive to 3.5" Bay
Mobile Rack Drives Support	1 x 2.5" Drive to 3.5" Bay
Mobile Rack Interface	SATA I/II/III
Protection Case	Single Drive
Specifications	Host Interface : Single 7pin SATA Drive Fit : Single 2.5" SATA I/ II/ III HDD/ SSD (7-15mm Height Drive) Drive Bay : 3.5" floppy drive bay Transfer Rate : Up to 6 Gb/sec. (depending on hard drive speed) Power Input : Single 15pin SATA power port Insert& Extract connection Via : Direct SATA hard drive connection Structure : Full Metal Drive Cooling : Metal heat dispersion LED Indication : Device Power & Drive Activity LED Color : Green : Device Power ; Amber : Drive Activity Dimension (L x W x H) : 5.32" x 4.00" x 1.01" Weight : 0.88 lbs

Additional Information
First Listed on Newegg	November 06, 2025

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Icy DocK MB991SK-B | 2.5" SATA HDD & SSD Mobile Rack for External 3.5" Drive Bay | ToughArmor

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Item#: 9SIA25VKN56484

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Icy DocK MB991SK-B | 2.5" SATA HDD & SSD Mobile Rack for External 3.5" Drive Bay | ToughArmor

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Manufacturer Contact Info