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ICY DOCK FLEX-FIT Trio MB343SP 5.25 Inch Bay to One 3.5 and Two 2.5 Inch Drives Mounting Kit Black

Brand:
Icy Box
Cremax ICY Dock MB343SP Storage bay adapter 5.25 to 1 MB343SP
ICY DOCK FLEX-FIT Trio MB343SP 5.25 Inch Bay to One 3.5 and Two 2.5 Inch Drives Mounting Kit Black
€22.86 inc. VAT
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MB343SP
€19.21
€22.86 inc. VAT
Ships from EU stock: 29 item(s)
Product Code
04:152849
EAN Code
4711132869354
Manufacturer
Icy Box

Quick Specs

Fits into
1× external 5.25-inch half-height bay
Holds
1× 3.5-inch + 2× 2.5-inch drives
2.5-inch height
Up to 9.5 mm
Mounting
Tool-less Smart-Tip, 109 g
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ICY DOCK FLEX-FIT Trio MB343SP — Three Drives in One 5.25″ Bay

1× 3.5″ + 2× 2.5″Tool-less 3.5″ mounting9.5 mm 2.5″ drives109 g, dust cover

The ICY DOCK FLEX-FIT Trio MB343SP fits three drives into one external 5.25-inch half-height bay: a 3.5-inch device or hard disk, plus two 2.5-inch drives. It is a passive plastic bracket with no backplane and no electronics — every drive keeps its own data and power cables and is wired straight to the motherboard, so nothing sits between the drives and the host. The 3.5-inch position uses ICY DOCK’s Smart-Tip locking mechanism and needs no screws, which also means the position can take a 3.5-inch mobile rack or bracket rather than a bare disk. A snap-off front dust cover keeps the bay closed until it is in use.

Compatibility — check before buying:
Trio or Duo — check the letter. The MB343SP Trio holds one 3.5-inch device plus two 2.5-inch drives. The near-identical MB343SPO Duo holds one 3.5-inch device plus an ultra-slim optical drive and has no 2.5-inch bay at all. If you are mounting SSDs, the Trio is the one you want. Other points that decide the order: the 2.5-inch positions take drives up to 9.5 mm, so 12.5 mm and 15 mm 2.5-inch disks are out; it needs an external 5.25-inch half-height bay, meaning a front-facing opening rather than an internal cage; and it is not hot-swap — there is no backplane, so the machine goes off before a drive comes out. No cables are supplied, and three drives need three SATA ports and three power connections. Tell us the case and how many free ports you have and we will make sure the order is complete.

Best For

✓ Filling one 5.25-inch bay with three drives in a compact build
✓ A 3.5-inch hard disk plus two SSDs in the same front bay
✓ Reusing an empty optical bay after the drive came out
✓ Cases that ran out of 2.5-inch mounting points
✓ Adding a 3.5-inch mobile rack alongside two fixed SSDs
✓ Home servers and workstations built from an older tower

Key Features

 
Three drives, one bay
A 5.25-inch half-height bay normally takes one device. The Trio divides it into a 3.5-inch position and two 2.5-inch positions, which in practice turns an unused optical bay into a hard disk plus two SSDs. The bracket measures 145.8 × 170 × 41.3 mm and weighs 109 g, so it drops into the bay like an optical drive would.
 
Screwless 3.5-inch mounting
ICY DOCK’s Smart-Tip locking mechanism holds the 3.5-inch device without screws, so a hard disk goes in and out by hand. Because that position accepts brackets and mobile racks as well as bare drives, the bay can be re-purposed later — a rack in the 3.5-inch slot turns the assembly into a swappable bay with two fixed SSDs beside it.
 
Nothing between drive and motherboard
There is no backplane and no bridge chip. Each of the three drives is cabled directly to the host, so there is no shared bandwidth, no controller to update and nothing that can throttle a link. If the bracket is ever removed the drives simply carry on working, and a snap-off dust cover closes the front while the bay is empty.

Technical Specifications

Identification
Brand ICY DOCK
Series FLEX-FIT Trio
Part Number MB343SP
EAN / GTIN 4711132869354
MPN MB343SP
Function
Type 5.25-inch bay mounting kit / bracket
Devices carried 1× 3.5-inch device or HDD, plus 2× 2.5-inch drives
Target bay 1× external 5.25-inch half-height bay
Connectors on bracket None — each drive is cabled directly to the host
Hot-swap Not supported
Drive compatibility
2.5-inch positions 2× IDE or SATA HDD and SSD, up to 9.5 mm
3.5-inch position 3.5-inch HDD, 3.5-inch device, or a 3.5-inch mobile rack or bracket
Mounting Tool-less Smart-Tip locking mechanism for the 3.5-inch device
Dust cover Snap-off front panel cover
Physical
Dimensions (W × D × H) 145.8 × 170 × 41.3 mm
Net weight 109 g
Package gross weight 181 g
Material Plastic
Colour Black
Cooling Passive — no fan
In the box
Package contents 1× bracket, 1× user manual, screws
Not included Drives, SATA data cables, SATA power cables or splitters
Warranty
Warranty 1-Year Warranty (Singular)
Manufacturer Term ICY DOCK publishes a 3-year term on this model on its global product page, and terms vary by region. Singular’s direct warranty is 1 year; beyond that we assist you with the manufacturer’s warranty process for its full duration.

Frequently Asked Questions

What is the difference between MB343SP and MB343SPO?
The 2.5-inch bays. The MB343SP Trio has two of them alongside the 3.5-inch position; the MB343SPO Duo replaces them with an ultra-slim optical drive slot and has none. One letter, and it decides whether you can mount SSDs.
Will a 12.5 mm 2.5-inch drive fit?
No. The 2.5-inch positions are rated to 9.5 mm, which covers effectively every 2.5-inch SSD and the thinner laptop hard disks. A thick 2.5-inch enterprise drive needs a different carrier — send us the model and we will find one.
Can I hot-swap the drives?
No. There is no backplane; the drives are held by the bracket and cabled straight to the motherboard, so power down before changing one. If you want front-panel swapping, put a 3.5-inch mobile rack into the 3.5-inch position — that position accepts one.
How many SATA ports do I need?
Three, plus power for each drive. The bracket does not multiply ports or split connections. Counting free SATA headers and power leads before ordering is the step most people skip.
Singular Expert Insight
The Trio is the more useful of the two FLEX-FIT brackets for most builds today, simply because optical drives have gone and SSDs have not. Where it earns its keep is in an older tower with one empty 5.25-inch bay and no 2.5-inch mounting points anywhere: three drives go in, nothing is cut or drilled, and the front stays tidy behind the dust cover. The one design decision worth thinking about is what goes in the 3.5-inch position — a bare disk if you want capacity, or a mobile rack if you want a bay you can pull from the front. Our HDD and SSD enclosures section covers those racks, and internal SSDs covers the 2.5-inch drives for the other two positions.

Buyer’s Guide

Buy it if

You have one free external 5.25-inch bay and want a 3.5-inch device plus two 2.5-inch drives in it, your SSDs are 9.5 mm or thinner, and you have three spare SATA ports.

Skip it if

You wanted an optical drive slot — that is the MB343SPO Duo. Your 2.5-inch drives are thicker than 9.5 mm. Or you need hot-swap, which a passive bracket cannot give you.

Also consider

ICY DOCK FLEX-FIT Duo MB343SPO if the second position must take an ultra-slim optical drive, or a 5.25-inch mobile rack if what you really want is front-panel hot-swap.

Features - Icy Box - MB343SP

Colour
black
More Details
Product Code
04:152849
EAN Code
4711132869354
Manufacturer
Icy Box
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