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Internal Storage Comparison - July 2026

7 Best Internal Storage In the UK

1
Best Choice
9.8Exceptional
2
9.5Excellent
3
Best Value
9.4Excellent
4
9.3Excellent
5
9.0Excellent
6
8.7Very Good
7
8.6Very Good
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Model

Samsung 990 EVO Plus, 2TB, PCIe 4.0 x4 / 5.0 x2, NVMe2.0 (up to 7250 MB/s), NVMe M.2 (2280), Internal Solid State Drive (SSD), MZ-V9S2T0BW
Model
Seagate IronWolf 4TB, NAS, Internal Hard Drive, CMR, 3.5 Inch, SATA, 6GB/s, 5.400 RPM, 256MB Cache, for RAID Network Attached Storage, Data Rescue Services (ST4000VNZ06)
Model
WD_BLACK SN850P 1TB PS5 SSD, Officially Licensed for PlayStation 5, Read Speeds Up to 7300 MB/s, M.2 2280 PCIe NVMe, Exclusive Heatsink Design, Internal Gaming SSD
Model
Lexar EQ790 2TB SSD, M.2 2280 PCIe Gen4x4 NVMe 1.4 Internal SSD, Up to 7,000MB/s Read, High-Performance Storage Internal Solid State Drive for AI Rendering, 4K Video Editing, PC & PS5 Gaming
Model
KingSpec 1TB 2.5" SATA III 6Gb/s SSD, Read Speed up to 550MB/s, 3D NAND Flash Internal Solid State Drive for Desktop & Laptop
Model
KingSpec 512GB 2.5" SATA III 6Gb/s SSD, Read Speed up to 550MB/s, 3D NAND Flash Internal Solid State Drive for Desktop & Laptop
Model
Lexar EQ790 2TB SSD with Heatsink, M.2 2280 PCIe Gen4x4 NVMe 1.4 Internal SSD, Up to 7,000MB/s Read, High-Performance Storage Internal Solid State Drive for PS5, PC, Laptop, Gamers

Brand

Samsung
Brand
Seagate
Brand
WD_BLACK
Brand
Lexar
Brand
KingSpec
Brand
KingSpec
Brand
Lexar

Reviews

2,636 reviews
Reviews
19,584 reviews
Reviews
1,408 reviews
Reviews
812 reviews
Reviews
1,584 reviews
Reviews
1,596 reviews
Reviews
160 reviews

Tech Specs

Form Factor

M.2 (2280)
Form Factor
3.5 Inch
Form Factor
M.2 2280 PCIe NVMe
Form Factor
M.2 2280
Form Factor
2.5 inch
Form Factor
2.5 inch
Form Factor
M.2 2280

Interface

PCIe 4.0 x4 / 5.0 x2, NVMe 2.0
Interface
SATA, 6GB/s
Interface
-
Interface
PCIe Gen4x4 NVMe 1.4
Interface
SATA III 6Gb/s
Interface
SATA III 6Gb/s
Interface
PCIe Gen4x4 NVMe 1.4

Capacity

-
Capacity
4 TB
Capacity
1TB
Capacity
-
Capacity
1TB
Capacity
512GB
Capacity
2TB

Maximum Sequential Read Speed

7, 250 MB/s
Maximum Sequential Read Speed
-
Maximum Sequential Read Speed
-
Maximum Sequential Read Speed
7, 000MB/s
Maximum Sequential Read Speed
-
Maximum Sequential Read Speed
550MB/s
Maximum Sequential Read Speed
7, 000MB/s

MTBF

-
MTBF
1M hours
MTBF
-
MTBF
-
MTBF
Up to 1 million hours
MTBF
1 million hours
MTBF
-

Compatibility

-
Compatibility
-
Compatibility
PlayStation 5
Compatibility
PC, laptops, PlayStation 5
Compatibility
-
Compatibility
-
Compatibility
PS5, PC, Laptop

Maximum Sequential Write Speed

-
Maximum Sequential Write Speed
-
Maximum Sequential Write Speed
-
Maximum Sequential Write Speed
5, 000MB/s
Maximum Sequential Write Speed
-
Maximum Sequential Write Speed
500MB/s
Maximum Sequential Write Speed
5, 000MB/s

Available On

Available On
Available On
Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.8
    1
    Samsung
    45% Off

    Samsung 990 EVO Plus, 2TB, PCIe 4.0 x4 / 5.0 x2, NVMe2.0 (up to 7250 MB/s), NVMe M.2 (2280), Internal Solid State Drive (SSD), MZ-V9S2T0BW

    Why we love it

    Very fast read speeds
    High energy efficiency
    Reliable thermal control
    Main highlights
    • What's in the box: 1 x Samsung 990 EVO Plus Internal NVMe M.2 SSD MZ-V9S2T0BW, Solid State Drive, Storage capacity: 2 TB
    • Versatile: high performance for everyday gaming and work as well as for creative projects thanks to compatibility with PCIe 4.0 x4 and PCIe 5.0 x2
    • Reliable: Heat Spreader Label for effective heat dissipation from the NAND chip, modern thermal control algorithm and Dynamic Thermal Guard for heat regulation - for consistently high performance
    • Powerful: internal SSD with sequential read speed up to 7,250MB/s¹ (45% faster speed than the previous model²)
    • Energy-efficient: up to 73% higher energy efficiency compared to the predecessor model³, while maintaining performance and thermal control
  • 9.5
    2
    Seagate

    Seagate IronWolf 4TB, NAS, Internal Hard Drive, CMR, 3.5 Inch, SATA, 6GB/s, 5.400 RPM, 256MB Cache, for RAID Network Attached Storage, Data Rescue Services (ST4000VNZ06)

    Why we love it

    Optimized for NAS environments
    Reduces noise and vibration
    Integrated health management
    Main highlights
    • label may vary on the item
    • Store more and work faster with a NAS-optimised hard drive providing 4 TB and cache of up to 64 MB
    • Purpose built for NAS enclosures, IronWolf delivers less wear and tear, little to no noise/vibration, no lags or downtime, increased file-sharing performance and much more
    • IronWolf internal hard drives are the ideal solution for up to 8-bay, multi-user NAS environments craving powerhouse performance
    • Easily monitor the health of drives using the integrated IronWolf Health Management system and enjoy long-term reliability with 1M hours MTBF
    • Amazon Exclusive
  • 9.4
    3
    WD_BLACK

    WD_BLACK SN850P 1TB PS5 SSD, Officially Licensed for PlayStation 5, Read Speeds Up to 7300 MB/s, M.2 2280 PCIe NVMe, Exclusive Heatsink Design, Internal Gaming SSD

    Why we love it

    Officially licensed for PS5
    Fast game load times
    Easy installation
    Main highlights
    • Store More, Play More, Fast. With up to 8TB capacity, your PlayStation 5 console has the additional space to store up to 200 games so you still have room for the next big title.
    • Officially Licensed for Your PS5 Console. Store and play more titles on the drive that’s officially tested and licensed for your PS5 console so you can keep gaming with confidence.
    • Get the Ultimate Gaming Edge over your Competition. Take advantage of irrational PCIe Gen4 NVMe speeds up to 7,300MB/s read and 6,600MB/s write (2TB and 4TB models) for a responsive and seamless gaming experience.
    • Exclusive Heatsink Design. With an exclusive heatsink design featuring the PlayStation logo and optimized for the PlayStation 5 console’s M.2 slot, installation and setup is worry-free.
    • 1 MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors.

Our ranking system

The topchoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. topchoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.

Features

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Consumer Reviews

We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
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Popularity

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Value for money

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When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.