Scan code: LN55457 Manufacturer code: MB343SP

ICY DOCKFLEX-FIT Trio Bay Converter/Mounting Kit

ICY DOCK FLEX-FIT Trio MB343SP, 2x 2.5" HDD/SSD & One 3.5" HDD/Device Front Bay, Mounting Kit, Black

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Scan code: LN55457 Manufacturer code: MB343SP
Order by 8:30 PM today and get it tomorrow
Get it Tomorrow, 08 JulIn stock
spend over £280 and Buy Now, Pay Later or spread the cost of your finance over 24-48 months with a 10% deposit.
Delivery Options
  • By DPD On 8th Jul to your specified address. | £5.48 Receive SMS with one-hour delivery window Weekend, timed and European delivery options are available at checkout

    Have your parcel delivered by DPD to your specified address. Receive SMS with one-hour delivery window

    Weekend, timed and European delivery options are available at checkout
  • Collect instore Collect from our Bolton store, BL6 6PE | Free

    Order online, collect from our Bolton store (25-28 Enterprise Park, Middlebrook, Horwich, Bolton, BL6 6PE)

  • UPS and DPD Pickup Pickup from local convenience store | £4.79

    Collect your parcel from your newsagents, petrol stations and convenience stores

  • SCANPROTECT Protect against installation damage for 28 days. More info

    ScanProtect is an enhanced warranty specifically designed and offered by Scan to reduce the risk of any mishap or damage to components during installation.

    Our aim with ScanProtect is to encourage our customers to upgrade or build their own PC confidently. For a small additional fee our customers are provided with complete peace of mind.

Frequently Bought Together
Product Overview

Very Unique Front Bay Adapter

The FLEX-FIT Trio MB343SP is a very unique 3.5” to 5.25” front bay adapter. At first glance is of what looks like a simple 3.5” to 5.25 device bay adapter, but there is more than meets the eye. We’ve created a device that utilizes a single external 5.25” bay and converts it into 2 x 2.5” HDD/SSD slots and a 3.5” device or hard drive bay designed for tool-less drive installation. The FLEX-FIT Trio MB343SP pushes the envelope with its unique features and brilliant engineering. As a result, you get a beautifully crafted adapter that is sturdy, flexible and multifunctional.


One of the most unique features of the FLEX-FIT Trio MB343SP is the FLEX-FIT system, which provides users a higher level of flexibility for a 5.25” adapter that only an Icy Dock product can deliver. The FLEX-FIT Trio can store a 3.5” device or hard drive and an additional 2 x 2.5” HDD/SSD, IDE or SATA hard drives from 7mm – 9.5mm height. It’s both space efficient and cost effective since you won’t be required to buy multiple brackets.

Screw-less Drive Installation

Thanks to our screw-less drive installation design, the device / drive installation process is very easy – simply slide in your 3.5” device until you heard a clicking sound, which means the Smart-Tip locks the 3.5” device into place. For extra security, the optional side screws can be added. For the 2.5” HDD/SSD slots, it takes any 2.5” SSD or hard drive without using any tools or screws, and the built-in self adjusting tab locks in 7mm-9.5mm 2.5” drives in place.

Take Any 3.5" Drive

The 3.5” bay can also take any standard 3.5” hard drive or SSD bracket, just slide in your 3.5” HDD or bracket and secure the drive with the side screw holes. Additionally, if you decided to install a 3.5” hard drive or device that doesn’t have a front Input/output interface, you won’t be left with an exposed slot. We’ve thoughtfully designed the rear plate to snap off so you can insert it in the front panel slot to blend in with your system.

Beautifully Crafted Design

The FLEX-FIT Trio MB343SP is engineered with the utmost dedication to building the most efficient and reliable product possible. Using a single, sturdy plastic open frame design provides excellent durability and passive cooling factor which as a result, reduces the chances of mechanical failures while using the device. Because the adapter is a single piece design, it is using absolutely zero moving parts as possible while retaining all core functionalities of the adapter.

Build Flexible

Since the 3.5” bay takes both 3.5” hard drive and 3.5” device, there are many build options to choose from. For example, adding the ToughArmor MB992SK-B would give you two internal 2.5” slots with two external hot-swap 2.5” bays. Adding the EZ-Fit Lite MB290SP-B will give you four total 2.5” slots. The FLEX-FIT Trio is also compatible with USB 3.0 hubs, multimedia card readers and fan speed controllers in 3.5” form factor.

• Compatible with any standard 5.25” device bay
• Fits 1 x 3.5” device / hard drive & 2 x 2.5” HDD/SSD
• Durable one piece, lightweight construction
• Snap-off front panel dust cover
• Smart-Tip locking mechanism for screwless 3.5” device installation
• Screw-less installation design for 2.5” HDD/SSD slots
• Side screw holes for 3.5” hard drive installation
• Compatible with our 3.5” mobile racks and brackets

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

36 months
Return to base
DOA Period:
28 days
RTB Period:
36 months
Manufacturer Contact Details
TekSpek Guides
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System Buses & Bandwidth
Date Issued: 21st Oct 2008

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Date Issued: 2nd Jul 2008

Serial ATA, or SATA, is a relatively new storage technology that is now being adopted in computers. It is the successor to Parallel ATA. SATA allows for faster transfers between the hard disk and the system, uses thinner cables and is easier to physically install

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Date Issued: 14th Jun 2008

In this guide we will be examining a popular method used for increasing the performance and reliability of your hard drives and data storage

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Gigabytes and Gibibytes
Gigabytes and Gibibytes
Date Issued: 23rd Aug 2005

If you've used a computer for any duration of time you'll have come across the terms “kilobyte, megabyte, gigabyte” and so on. Then there's “kilobit, megabit and gigabit” to add a bit of confusion and to top it all off you've maybe heard or read terms like “gibibyte” on occasion.

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ICY DOCK FLEX-FIT Trio MB343SP, 2x 2.5" HDD/SSD & One 3.5" HDD/Device Front Bay, Mounting Kit, Black is rated 4.2 out of 5 by 5.
Rated 5 out of 5 by from WOW What a great idea if you don't have much room in your case.This allowed me to remove all my hd drive bays in my antec 300 case which gave me better air flow! so I could have 2 ssd's and a 3.5" hd in one 5.25 bay.
Date published: 2016-01-20
Rated 5 out of 5 by from This should be standard in all cases Pretty amazing product. It can fit one HDD and two SSD in only ONE 5.25'' BAY! As nobody uses 5.25 Bays any more this is pretty useful. It improved the airflow and overall appearance of my case. The HDD is no longer in the way of the front fans and temps got a lot better. I think this should be standard in all cases, the 5.25 bay is the the place to be for HDDs and SSDs.
Date published: 2015-08-22
Rated 2 out of 5 by from New X-99 Build I bought this to mount my hard drive in the 5.25 bay, however the screws did not line up with the holes in my case so I was unable to use it. It was very cheap however, so I guess you get what you pay for. I could probably get it to fit with a bit of tinkering, but had another solution available, so went with that instead. That said, the hard drive did fit in perfectly as did 2 ssds, so If you can get it to fit your case, its worth a try.
Date published: 2015-04-22
Rated 5 out of 5 by from A really cool piece of kit. This is one of my finer purchases. Pull out that old CD drive and pop this bad boy in. It takes 2x 2.5 disks AND 1x 3.5 disk. Careful with heat though - the CD bays usually don't have very good cooling. I'm running it with 2x 500GB 7200rpm HGST disks and 1x 4TB 7200rpm HGST disk. The 4TB disk will occasionally get as hot as 46 C.
Date published: 2015-04-02
Rated 4 out of 5 by from Just the ticket - but read the manual! This was just the ticket for fitting my new SSD when I had only a 5 1/4" bay left. Read the manual before fitting though, it says how to blank the hole you'll otherwise get on the front.
Date published: 2014-08-18
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Would heat be an issue?

Would heat become an issue for the drives by using this? They seem a bit close together to allow for airflow, and a hard drive can get quite warm.
Asked by: Shadow
Modern hard drive in a case with good airflow shouldnt get that warm, therefore this should be fine.
Answered by: CarlH
Date published: 2015-07-17

does the 3.5 hole come with a blanking plate?

Asked by: bigsid
Hello, This comes with an optional dust cover to use over the 3.5" hole. Regards,
Answered by: JackB
Date published: 2018-01-22
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ICY DOCKFLEX-FIT Trio Bay Converter/Mounting Kit
ICY DOCKFLEX-FIT Trio Bay Converter/Mounting Kit