4TB Samsung 990 PRO M.2 NVMe SSD with Heatsink

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

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Product Summary

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Benefits of Upgrading Free Delivery Available

Product:M.2 (Type 2280) SSD

Size:

Kit:Drive with Heatsink

Type:PCIe 4.0 NVMe

Encryption:AES 256-bit Hardware

Class:Enthusiast / Gaming

Speed:7450MB/s read 6900MB/s write

Part No:MZ-V9P4T0GW

Stock:

Reach near max performance of PCIe® 4.0 with the Samsung 990 PRO M.2 NVMe SSD with integrated heatsink. Experience longer-lasting, opponent-blasting speed. The in-house controller's smart heat control delivers supreme power efficiency while maintaining ferocious speed and performance, to always keep you at the top of your game. The slim heatsink dissipates heat to prevent performance drops from overheating. Get stable heat control, and minimal fan noise for heavy-graphic gaming. The thin body is compatible with PlayStation® 5, desktops, and laptops meeting the PCI-SIG® D8 standard. 990 PRO uses less power with over 50% improved performance per Watt over 980 PRO. This low-power design makes near max PCIe®4.0 performance possible with optimal power efficiency.

Orders placed Monday to Friday after 4.30pm (UK time) or on weekends/bank holidays will be processed the next business day.
(subject to stock, order verification and chosen delivery option)

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Product Specifications

Important:	Please note, if you plan to clone your existing drive, you may also require an External USB Enclosure. If replacing an existing drive, ensure the new SSD is the same capacity as the old drive, or larger.
Product Description:	The ultimate SSD for an immersive gameplay experience. Sequential read/write speeds up to 7450/6900 MB/s reach near max performance of PCIe® 4.0. Up to 55% improvement in random performance enables faster loads for ultimate gaming realism on PS5 and DirectStorage PC games. The 990 PRO provides an optimal balance of speed, power efficiency and reliability making it an ideal solution for heavy gaming as well as creative tasks.
Brand:	Samsung
Compatibility:	For guaranteed compatibility, please choose your Model
Transfer Speed:	Up to 7,450MB/s Read / 6,900MB/s Write
Form Factor:	M.2 (2280)
Interface:	PCIe 4.0 x4, NVMe 2.0
Features:	Smart thermal solution with RGB lights - Slim heatsink dissipates heat to prevent performance drops from overheating Thin body compatible with PS5 plus desktops and laptops meeting the PCI-SIG® D8 standard Powered by latest Samsung in-house controller Supports DirectStorage PC games PCIe Gen 4.0 x4 lane interface PCIe 3.0 compatible NVMe 2.0 AES 256-bit for user data encryption TCG/Opal, IEEE1667 TRIM, Garbage Collection and S.M.A.R.T.
Item Contents:	SSD Warranty statement Installation guide Windows Data Migration Software - 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 Humidity: 5% to 95%, non-condensing Vibration Non-Operating: 20~2,000Hz, 20G Shock Non-Operating: 1,500G, duration 0.5ms, 3 axis
Dimensions:	80mm x 24.3mm x 8.2mm (LxWxH)
Weight:	28g Max
Life Expectancy:	1.5 million hours (MTBF)
Endurance:	1TB - 600TBW 2TB - 1,200TBW 4TB - 2,400TBW
Power Consumption:	1TB - Idle Max. 50mW / Average 5.4W / Max. 7.8W (Burst mode) 2TB - Idle Max. 55mW / Average 5.5W / Max. 8.5W (Burst mode)
Warranty:	Limited 5 Year Manufacturers Warranty

Trusted Customer Reviews

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Recent Google Reviews

Excellent and well laid out website, easily found my motherboard and the correct memory sticks for it. Prompt and well packaged delivery. PC now much faster.

John Fiore - Friday 12th June 2026

Purchase experience - very good. Memory modules delivered in good quality packaging. Installed and working perfectly. Cheers.

Jeff Daniels - Thursday 11th June 2026

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!

Helen Saunders-Pederick - Friday 24th April 2026

Rated 4.8 out of 5 on Google 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

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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.

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

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