Samsung 400MBs Flash Drive - 256GB
454/9086£63.99
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About this product
The Samsung 400MB s Flash Drive is designed for anyone who moves files between phones, tablets, cameras and computers on a regular basis. With 256GB of storage and a USB-C connector, this flash drive makes it straightforward to expand your device's capacity or transfer photos, videos and documents. The built-in key ring hole keeps it attached to your keys or bag, so it's always there when you need it.
This USB 3.1 flash drive delivers read speeds up to 400MB s, allowing rapid transfer of large files whenever you need them moved. It works with USB 3.0 and USB 2.0 devices too, giving you flexibility across older and newer hardware. The drive is protected against water, extreme temperatures, shock, magnets and X-ray exposure, so your data stays safe even when life gets unpredictable. Samsung backs it with a 5-year limited warranty for extra reassurance.
- Blue.
- Read speed 400Mbps.
- 256GB storage capacity.
- USB 3.0 compatibility.
- USB 2.0 compatibility.
- EAN: 8806092535909.
- Manufacturer's 5 year guarantee.
Returns
If you want us to collect an unwanted small item after delivery, it costs £3.95 or you can return it to any store for free. You won’t be charged if the item is faulty, or if it was delivered by a supplier.
4.9
15 reviews
87%
Recommended this product
Each review is verified as authentic by our independent third party and we only publish reviews from customers or Argos Testers who have purchased or used the item. Customers are incentivised to submit product reviews as part of a prize draw.
Reliable and robust.
I bought this Flash Drive as it was recommended as the go to by Which? magazine and ARGOS was the most convenient way to get hold of one.
Crip, 55 - 64, Portland
Small usb with large capacity
Bought it in December 2025
Allia, 45 - 54, Hounslow
USB pen drive
Nice fast usb c pen drive does exactly what it should
Marq, 55 - 64, Diver
Excellent USB flash drive product
Excellent USB flash drive product I needed for Windows backup and resinstall - as you would expect from Samsung - Quick collection from local Argos shop
Boris From Up North, 45 - 54
Dainty
A very dainty piece of kit. Needed a USB3.2 to USB-C adapter and all worked smoothly after.
KAREN, 65 or over
Perfect USBC
I bought this a few months ago, have been using it consistently since then, and had no problems. It’s really small to Out on my keychain and keep with me at all times.
Hollycolesuk, 35 - 44, Bath
Small, but Mighty
This is an excellent Flash Drive made by Samsung. I bought a 256GB variant at a really great price compared to other competitors and it does the job but superbly. Transfer speeds and read speeds are blisteringly fast and the Type-C Interface makes it super convenient to use across all Samsung devices and any other device with a Type - C port. Now for its design, this form factor is excellent. It is small, portable and it is super convenient. Some pointers for Samsung though, I did notice it does heat up a bit when plugged in and not being used but, I guess that is due to its small form factor so it is understandable. Also they provide a loophole for the cap and the drive so you can loop a string through it to keep the lid and drive together. Might I suggest that Samsung adds a string or looping string of some sort to utilise this functionality? But all in all, Great Job Samsung with this Type - C Flash Drive. :D
IcantThinkOfaName255, London
Fast flash.
This is my second purchase of the Samsung flash drive and I am very impressed with the quality and speed. I would definitely recommend this to anyone looking for a compact and speedy usb-c.
Gerry, 65 or over, Ireland
It's a usb drive
It's a usb drive and it seems 2 work
Doh, 65 or over, Cardiff
Samsung pen drive
Good quality and useful Happy with my purchase
Pit, 35 - 44, London
Hello Kris,
The supplier has advised the following for the Samsung 400MBs Flash Drive - 256GB:
Yes, it is compatible. Format the drive as exFAT for best compatibility between iPhone, Windows, and Mac.
On iPhone, you'll typically access the drive through the Files app rather than a Samsung-specific app.
If the drive isn't recognized immediately, unplug/replug it and check that the drive is formatted correctly. Community reports show exFAT formatting resolves many compatibility issues.
Thank you for using Q and A.
Hi, Nic
I can advise that the Samsung 400MBs Flash Drive - 256GB is compatible with the Blink Sync Module 2. The Sync Module 2 supports USB flash drives from 1 GB to 256 GB, so your drive meets the necessary requirements for local storage of video clips.
Thanks for using Q&A.
Hi Paby.
Samsung 400MBs Flash Drive - 256GB:
From the information available, the flash drive is compatible with the Galaxy S24.
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Hi Sandy.
Yes, Samsung 400MBs Flash Drive - 256GB is compatible with Galaxy Tab A7b A7A7.
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Hi Davie,
Samsung 400MBs Flash Drive - 256GB
Having checked I can confirm this is is backward compatible with USB 3.0/2.0.
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Hello Jane,
The number of gigabytes (GB) a film uses on a Samsung 256GB flash drive depends on the video quality and format. Here's a general breakdown:
Typical Film File Sizes by Quality:
Quality Approx. File Size per Film
SD (480p) 700 MB – 1.5 GB
HD (720p) 1 – 2.5 GB
Full HD (1080p) 2 – 4 GB
4K (2160p) 10 – 20+ GB
Thank you for using Q&A
Hello There,
The Samsung 400MB/s Flash Drive - 256GB is compatible with the Samsung A50 This flash drive features a USB Type-C connector, making it versatile for various devices, including smartphones like the Samsung A50.
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Hello There
After contacting our suppliers they have advised for Samsung 400MBs Flash Drive - 256GB.
Generally, all Samsung USB flash drives are suitable for video recording. Actual speed may vary depending on the host device, usage conditions, and environment.
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Hello there,
Samsung 400MBs Flash Drive - 256GB
This would be compatible with the Samsung A71.
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Hello Jgi,
From the information we have available, I can advise the Samsung 400MB/s Flash Drive is primarily a USB-C device. Since the iPhone 13 uses a Lightning port, you would need a USB-C to Lightning adapter to connect the flash drive directly to your iPhone.
However I would advise a Flash Drive with a lightning connector or both lightning and USB-C connectors.
Thank you for using Q&A
The small print
*Prices correct as displayed but are subject to change.
The customer and brand answers you’ll see above are submitted independently. As we don’t review these answers, we can’t take responsibility for anything they may say. The responses from Argos colleagues are accurate at the time of publishing. For the latest info, you should check the product page.