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Black plastic mounting bracket fits a 5.25 inch bay with a 3.5 inch drive slot and 9.5mm optical drive bay

ICY DOCK

ICY DOCK MB343SPO 5.25" to 3.5" HDD & 9.5mm ODD bay hdd accessory

SKU CH-AHBP-YGMAS MPN MB343SPO

Converts a 5.25" bay to hold one 3.5" drive and one 9.5mm ODD with screw-less mounting

  • Conversion tray1 × 5.25 in Drive to 3.5 in Bay
  • Mobile rack drives support1 × 3.5 in Drives to 5.25 in Bay
  • Mobile rack interfaceSATA I/II/III
  • Protection caseMultiple Drives
  • Product colorBlack
  • For use with3.5 in (8.89 cm)

Model Bracket ODD

  • Fits one 3.5" drive and one 9.5mm optical drive in a single 5.25" bay
  • Screw-less 3.5" device installation using the Smart-Tip locking mechanism
  • Snap-off front panel dust covers protect both the 3.5" and optical bays
  • Advanced guiding system ensures smooth drive insertion and removal
  • Durable one-piece plastic construction weighs only 97.6g

5.25" to 3.5" bay adapter

The ICY DOCK MB343SPO converts a single 5.25 inch external bay into space for one 3.5 inch SATA drive and one 9.5 mm ultra-slim optical drive. A screw-less Smart-Tip locking mechanism secures the 3.5 inch device while a guiding system eases insertion. Snap-off dust covers keep both openings clean when not in use. A 6-pin Slimline to 15-pin SATA power cable is included.

For builders adding legacy storage

This bracket suits system integrators or enthusiasts who still use 3.5 inch hard drives or slim optical drives in modern chassis with a free 5.25 inch bay. It is not for builders who only have 3.5 inch internal bays available or who need to install 2.5 inch drives without a separate adapter. It also cannot serve cases that lack a 5.25 inch half-height opening.

Single 5.25" bay conversion

The decisive specification is the one-to-two device fit: exactly one 3.5 inch SATA drive and one 9.5 mm ultra-slim ODD share a single 5.25 inch half-height bay. If the build requires two 3.5 inch drives or a full-height optical drive, this bracket will not accommodate them.

How it compares

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

Price $23.99
Typical for this category: the median of 218 items is $26.99.

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Specifications

Product
Brand nameICY DOCK
Model nameMB343SPO
Product colorBlack
Storage
Mobile rack drives support1 × 3.5 in Drives to 5.25 in Bay
Ports & slots
Mobile rack interfaceSATA I/II/III
Size & build
Shipping weight0.18 kg
Package size165 × 152 × 58 mm
Compatibility
For use with3.5 in (8.89 cm)
In the box
In the boxDevice, User Manual, Screws
More details
Conversion tray1 × 5.25 in Drive to 3.5 in Bay
Protection caseMultiple Drives

Other versions of this model

4 more in the same range

Questions about this item

Will this bracket fit into a standard 5.25" external drive bay in my case?

Yes, the MB343SPO is designed for any standard 5.25" half-height external bay measuring 148.80 x 145.80 x 41.30 mm.

How does the Smart-Tip locking mechanism work for screw-less 3.5" drive installation?

Slide the 3.5" drive into the tray until the Smart-Tip tabs click into the drive's side mounting holes, securing it without screws.

Do the snap-off front panel dust covers need periodic cleaning or replacement?

The dust covers are fixed plastic parts; simply wipe them with a dry cloth if dust accumulates — no replacement is required.

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