990 EVO Plus, PCIe 4.0/5.0, NVMe M.2 SSD

Black 4TB
MZ-V9S4T0BW

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990 EVO Plus, PCIe 4.0/5.0, NVMe M.2 SSD
Black 4TB

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Features

Upgrade everyday performance

Top 3 features

The phrase "Up to 7,250 MB/s" is written on a rectangle shaped like the 990 EVO Plus.

Performance

Up to 7,250MB/s of sequential read speed, 45% faster speed than the previous model, the 990 EVO.

It says "73% Enhanced" on the dashboard.

Power efficiency

Power efficiency enhanced by 73% compared to the 990 EVO for more MB/s per watt, while maintaining performance and thermal control.

It says "Up to 4TB" inside two connected circles.

Versatility

Up to 4TB capacity and rapid Intelligent TurboWrite 2.0.

Spectacular speed everyday

Blast through tasks faster. 990 EVO Plus with the latest NAND offers boosted sequential read/write speeds up to 7,250/6,300MB/s. Huge files, instant transfer.

* Sequential and random write performance was measured with Intelligent Turbo Write technology being activated. Intelligent Turbo Write operates only within a specific data transfer size. Performance may vary depending on SSD’s firmware, system hardware & configuration and other factors. For detailed information, please contact your local service center.* Test system configuration: AMD Ryzen9 7950x 16-Core Processor CPU@4.5GHz, DDR5 4800MHz 16GBx2 (PC5-38400), OS-Windows 11 Pro 64bit, Chipset - ASRock X670E Taichi* To maximize the performance of the 990 EVO Plus, please check whether your system supports PCIe® 4.0 or PCIe® 5.0 at the Intel or AMD website.* Product image shown for illustrative purposes only; actual product may differ.

Keep cool and power through your day

Optimised efficiency, extended performance. The nickel-coated controller increases MB/s per Watt by 73% compared to the 990 EVO, achieving the same power level and thermal control with less power consumption. Stay focused on work or play without worrying about overheating or battery life.

Extra space. Extra speed.

Harness the full power of your drive with enhanced Intelligent TurboWrite 2.0. Process massive data faster and breeze through heavy graphics with an enlarged TurboWrite region, now available in 4TB capacity.

*Compared to the previous model, the 990 EVO

Samsung Magician software

Make your SSD work like magic. Samsung Magician software's optimisation tools ensure the best SSD performance. It's a safe and easy way to migrate all your data for a Samsung SSD upgrade. Protect valuable data, monitor drive health, and get the latest firmware updates.

* For detailed information, please visit Samsung Magician software website.https://semiconductor.samsung.com/consumer-storage/magician/

* For detailed information, please visit Samsung Magician software website.https://semiconductor.samsung.com/consumer-storage/magician/

Bringing innovations to life

For decades, Samsung’s NAND flash memory has powered groundbreaking technologies that have changed every part of our daily lives. This NAND flash technology also powers our consumer SSDs, making room for the next big push of innovation.

Specifications

  • Interface

    PCIe® 4.0 x4 / 5.0 x2 NVMe™ 2.0

  • Sequential Read

    Up to 7,250 MB/s * Performance may vary based on system hardware & configuration

  • Sequential Write

    Up to 6,300 MB/s * Performance may vary based on system hardware & configuration

  • Warranty

    5-year Limited Warranty or 2400TBW Limited Warranty

  • Application

    Client PCs

  • Weight

    Max 9.0g Weight

  • Dimension (WxHxD)

    Max 80.15 x Max 22.15 x Max 2.38 mm

  • Application

    Client PCs

  • Capacity

    4,000GB (1GB=1 Billion byte by IDEMA) * Actual usable capacity may be less (due to formatting, partitioning, operating system, applications or otherwise)

  • Form Factor

    M.2 (2280)

  • Interface

    PCIe® 4.0 x4 / 5.0 x2 NVMe™ 2.0

  • Dimension (WxHxD)

    Max 80.15 x Max 22.15 x Max 2.38 mm

  • Weight

    Max 9.0g Weight

  • Storage Memory

    Samsung V-NAND TLC

  • Controller

    Samsung in-house Controller

  • Cache Memory

    HMB(Host Memory Buffer)

  • TRIM Support

    Supported

  • S.M.A.R.T Support

    Supported

  • GC (Garbage Collection)

    Auto Garbage Collection Algorithm

  • Encryption Support

    AES 256-bit Encryption (Class 0)TCG/Opal IEEE1667 (Encrypted drive)

  • WWN Support

    Not supported

  • Device Sleep Mode Support

    Yes

  • Sequential Read

    Up to 7,250 MB/s * Performance may vary based on system hardware & configuration

  • Sequential Write

    Up to 6,300 MB/s * Performance may vary based on system hardware & configuration

  • Random Read (4 KB, QD32)

    Up to 1,050,000 IOPS * Performance may vary based on system hardware & configuration

  • Random Write (4KB, QD32)

    Up to 1,400,000 IOPS * Performance may vary based on system hardware & configuration

  • Average Power Consumption (system level)

    Average: Read 5.5 W / Write 4.8 W* Actual power consumption may vary depending on system hardware & configuration

  • Power consumption (Idle)

    Typical 60 mW * Actual power consumption may vary depending on system hardware & configuration

  • Power Consumption (Device Sleep)

    Typical 5 mW * Actual power consumption may vary depending on system hardware & configuration

  • Allowable Voltage

    3.3 V ± 5 % Allowable voltage

  • Reliability (MTBF)

    1.5 Million Hours Reliability (MTBF)

  • Operating Temperature

    0 - 70 ℃ Operating Temperature

  • Shock

    1,500 G & 0.5 ms (Half sine)

  • Installation Kit

    Not Available

  • Management SW

    Magician Software for SSD management

  • 5-year Limited Warranty or 2400TBW Limited Warranty

Reviews

990 EVO Plus, PCIe 4.0/5.0, NVMe M.2 SSD

5.0

Recommended by 100% of customers.

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The Overall Rating and the average star scores are made up of incentivised and non-incentivised reviews; as well as in store product demonstrations.

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Design 4.8

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7 Reviews

sk1d00
5 (9,999)

2025-12-14

London

Storage Memory : 4TB | Colour : Black
5 (9,999)
Ordered just before the prices started going up so price was very good. It’s perfect as a large drive for my games and matches my primary drive. The magic application showed me firmware was up to date with no issues.
[D] Alternative Text [D] Alternative Text
I recommended this product.
Originally posted on argos.co.uk

Design

5 (9,999)
R_P
5 (9,999)

2025-12-09

Storage Memory : 4TB | Colour : Black
5 (9,999)
For the price, this SSD offers excellent value. A full 4TB that plugs directly into the motherboard and massively improves system and program loading times. The large capacity really helps future-proof my storage, especially with games getting bigger every year. Performance-wise, the general specs such as read/write speeds are solid, and more than fast enough for gaming and everyday use. The drive itself isn’t much to look at inside a gaming rig, but given its small size it doesn’t affect the overall aesthetic and certainly isn’t a deal-breaker. Installation was straightforward and took about 20 minutes. Samsung Magician also makes it easy to monitor drive health and temperature, which is a nice bonus. Overall, a great upgrade and fantastic value for the storage you get.
Originally posted on argos.co.uk

Design

4 (9,999)
Graham
5 (9,999)

2025-09-08

South Yorkshire

Storage Memory : 4TB | Colour : Black
5 (9,999)
Like many of us, you always think that you have more than enough internal memory. I started with a mere 128GB internal hard drive for my HP Pro G6 laptop, but as I self-published author soon realised this would not be enough. Mainly because I started using a 3D graphics program, and as my library of items increased so did the memory required. A Samsung 265GB was quickly followed by a 500GB SSD, then to a 1TB model. Yet most of my library was on external drive, so I finally purchased a Samsung 990 EVO Plus 4TB SSD, the largest my laptop can access. Samsung have some free software, (Samsung Magician,) which makes duplicating Windows OS a breeze, including all the installed programs on your original drive, (helps if your existing SSD is Samsung.) I went for the 990 EVO Plus because of it's lower heat signature over the Samsung 990 Pro with heat sink. This is the last upgrade I can make to my existing laptop with It's Intel i5 processor and 64GB memory, Crucial.UK has a free upgrade checker that tells you which memory and drives you can fit to your computer.
I recommended this product.
Originally posted on argos.co.uk

Quality of Product

5 (9,999)
Wiz
5 (9,999)

2026-03-08

Storage Memory : 4TB | Colour : Black
5 (9,999)
Bought this a few months ago for a mac studio m4.So impressed with the read and write speeds. getting 6000 mb/s read using a wavlink 80 gb/s enclosure. I can Thoroughly recommend this nmv2 ssd.
Originally posted on argos.co.uk

Design

5 (9,999)
Deividas
5 (9,999)

2025-06-02

Nelson

Storage Memory : 4TB | Colour : Black
5 (9,999)
Great nvme SSD . Good value . A lot space. Nice temperatures. No issues at all. Would recommend this product to a someone who need decent nvme for a good price.
I recommended this product.
Originally posted on argos.co.uk

Quality of Product

5 (9,999)
Karlant1
5 (9,999)

2025-06-03

Birmingham

Storage Memory : 4TB | Colour : Black
5 (9,999)
Purchased this ssd drive recently as I needed a lot of storage. Certainly works well and data speeds are really good. Would certainly recommend.
I recommended this product.
Originally posted on argos.co.uk

Quality of Product

5 (9,999)
Sam
5 (9,999)

2025-10-28

North West

Storage Memory : 4TB | Colour : Black
5 (9,999)
I bought this to replace a couple 2tb hard drives and I couldn't be happier.
I recommended this product.
Originally posted on argos.co.uk

Design

5 (9,999)

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