4TB Samsung 870 EVO 2.5-inch SSD

Trusted High-Performance Computer SSDs from the UK's Leading Upgrade Specialist

For guaranteed compatibility, please choose your Model, use our ScanMyPC app, or Contact a Memory Specialist for assistance.

Product Summary

£1,272.00

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Benefits of Upgrading Free Delivery Available

Product:2.5" Solid State Drive

Size:

Kit:Drive Only

Type:SATA 6Gb/s

Encryption:AES 256-bit Hardware

Class:Consumer

Speed:560MB/s read 530MB/s write

Part No:MZ-77E4T0B/EU

Stock:

Upgrade your device with the Samsung 870 EVO 2.5" SATA SSD to significantly reduce boot up and loading times. SSDs are not only faster than traditional hard disk drives, but also consume less power, generate less heat, weigh less and are silent in their operation.

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Product Specifications

Important:	Please note this includes the SSD and cloning software only. You may also require a bracket, enclosure or installation kit - Go to SSD Accessories. If replacing an existing drive, ensure the new SSD is the same capacity as the old drive, or larger.
Product Description:	The perfect choice for creators, IT professionals or everyday users, the latest 870 EVO has indisputable performance, reliability and compatibility built upon Samsung's pioneering technology. Everyday users can now enjoy professional-level SSD performance with the 870 EVO, which maximises the SATA interface limit to 560/530 MB/s sequential speeds,* accelerates write speeds and maintains long-term high performance with a larger variable buffer that lets the SSD work faster, longer. *Performance may vary based on SSD’s firmware version and system hardware & configuration. Sequential write performance measurements are based on Intelligent TurboWrite technology.
Brand:	Samsung
Compatibility:	For guaranteed compatibility, please choose your Model
Transfer Speed:	Up to 560MB/s Read / 530MB/s Write
Form Factor:	2.5 inch
Interface:	SATA Rev. 3.0 (6Gb/s) SATA Rev. 2.0 (3Gb/s) SATA Rev. 1.0 (1.5Gb/s)
Features:	Samsung V-NAND 3bit MLC Samsung MKX Controller AES 256-bit Full Disk Encryption (FDE) TCG/Opal V2.0, Encrypted Drive (IEEE1667) TRIM (Requires OS support) Garbage Collection S.M.A.R.T.
Item Contents:	SSD Warranty statement Installation guide Samsung Magician Data Migration software for Windows - download link
Software:	Samsung Magician Data Migration software for Windows is included with this product. If you have any issues cloning your old drive, Mr Memory recommend using Macrium Reflect Free.
Operating Environment:	Temperature Operating: 0°C to 70°C Temperature Non-Operating: -40°C to 85°C Humidity: 5% to 95%, non-condensing Vibration Non-Operating: 20~2000Hz, 20G Shock Non-Operating: 1500G, duration 0.5ms, 3 axis
Dimensions:	100mm x 69.85mm x 6.8mm (LxWxH)
Weight:	250GB/500GB/1TB - 45g 2TB - 46g 4TB - 48g
Life Expectancy:	1.5 million hours (MTBF)
Endurance:	250GB - 150TBW 500GB - 300TBW 1TB - 600TBW 2TB - 1,200TBW 4TB - 2,400TBW
Power Consumption:	Idle - 35mW (max) Read / Write Average - 2.5W (max) Read / Write Burst - 5W (max)
Warranty:	Limited 5 Year Manufacturers Warranty

Trusted & Reliable Customer Reviews

Good service

Great after care when we had an issue

Chris - Friday 22nd May 2026

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Mr Memory was very helpful all the time

M. Bran - Tuesday 19th May 2026

Verified order

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Items arrive quickly and well packaged

Items arrive quickly and well packaged. Bought from Mr Memory 4 or 5 times over past few years. Always great customer support.

Sharon E - Monday 4th May 2026

Verified order

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First Class all round!

I don't use Mr Memory frequently but have bought from them for many years when upgrading my (and extended friends and family's) various computers or replacing hard drives. I have never had cause to contact them outside of the normal process because a) everything has always been spot on and b) I haven't been a numpty before and ordered the wrong thing! So the most recent transaction with them has been a wholly enjoyable experience and totally different from any other contact I have had with any other company.
I ordered PC memory, when I should have ordered laptop memory -totally my fault! - and upon completing the returns details (which is all free post by the way!) I received an email from a wonderful person named Zoe, who happens to be Head of Operations, within 30 minutes giving me a return reference and asking what I wanted to exchange it for (the return request was for replacement not refund).
I replied with my brain fart issue and stated the laptop memory needed.
I received a very fast reply stating the laptop memory will not be in stock until the following Monday.
I then - being the awkward customer I am - asked if it could be posted to a different address as I was on a bit of a time crunch. Zoe replied saying it wouldn't be a problem. I then asked how I could pay the (very small amount) difference..... and she replied saying that they wouldn't charge any more than I had already paid!
If anyone out there doesn't agree about the absolute first class customer focus and service after hearing all my issues and stupidity that Zoe dealt with....
I have no words!
Thank you Zoe and Mr Memory, I am very glad I purchase hardware from you and will continue to do so!

HSP - Friday 24th April 2026

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4.9 out of 5 MORE REVIEWS

Benefits of Upgrading your Storage

Upgrading is Easy!

With our simple help guides and support, you can easily clone and install your new SSD yourself.

Speed & Capacity

Significantly faster than traditional hard disk drives
Increase startup time, speed up your operating system and reduce program loading times
Increase your storage space to store more programs, games, documents, photos etc.

Reliable & Economical

No moving parts, more reliable, and silent in operation
SSDs consume less power, generate less heat and weigh less than hard disk drives
Extend the life of your computer for much less than the cost of a new system

Simple Installation

Upgrading your computers storage is simple with our easy to follow installation guides & videos
Low cost upgrade kits including all the components you need for an easy installation
Free support provided by our friendly specialists should you need help
Working from home? Ensure your computer is up to the task with a simple SSD upgrade

Reduce your impact on the Environment

Join 500,000+ Mr Memory customers who saved their computer from a trip to the recycling centre
Renewing your device instead of replacing it reduces e-waste and greenhouse emissions
Help electronics become a more sustainable part of our lives by renewing them
By using your electronic devices for as long as possible, you are saving the planet’s resources
Return your old HDD or SSD to us and we will ensure it is responsibly recycled

Working from Home & Hybrid Working

If you work from home or are thinking of doing so in the future you need to have the right tools available to do your job as efficiently as possible. Whether you use your own computer or a company owned device, do not be slowed down by insufficient memory or storage. Upgrading the memory and/or SSD is a simple way to save time when working from home.

Increase home working efficiency and performance
Create a stress free and healthier environment with less distractions
Minimise the impact of a slow connection, and improve the responsiveness of video calls
Easily upgrade your computer at home, and claim on company expenses
Working from home has been shown to improve creativity and give a better home life/work balance
Save time and money on commuting, and benefit from flexible scheduling

Trust the Mr Memory Brand

Feel Safe, Feel Secure & Feel Appreciated

We help people to feel safe, happy and secure. You can trust the Mr Memory brand - we will protect your data, save you money and improve the performance of your valued devices, whilst being eco-responsible.

Our specialists provide free support to anyone who needs it - at any stage of the order process. Our communication is fast and our guidance is as technical or as basic as you need it to be.

Buy from a UK based company with 32 years experience
100% Safe & Secure website
Fully informed at every stage of the order
Fast dispatch - 98% of orders dispatched same day
Highest quality brand new products from the best brands in the world
Free environmentally friendly recycling of your old product
Accurate database with new models added daily
30-day credit available to the Public / Private Sector
250,000+ businesses use Mr Memory for their Memory/RAM & SSD upgrades
Over 150,000 registered online customers
We are compliant with the latest privacy regulations including the UK and EU GDPR

Working Towards a Sustainable Future

Mr Memory is tackling climate change as a team with an aim to being carbon neutral by 2027.

Our employees are encouraged to walk, cycle or car share
We encourage our employees to stay healthy, eat more sustainable food and buy locally
We always try to purchase from UK based companies where possible
We hold regular staff meetings where our employees opinions on climate change are heard
We supply appropriate uniform to reduce heating and air-con use
We have waste reduction procedures in place - all of our packaging can be recycled
Our refuse bags are bio-degradable
Our cleaning equipment and products are all eco-friendly
Our printing is limited to essential customer paperwork only
When not in use all electrical devices are turned off and we always purchase energy efficient devices
Our energy supplier is moving to 100% renewable electricity and is a COP29 Principal Partner
All of our suppliers use recyclable packaging, which we reuse where possible
We are constantly reviewing our Sustainability Statement