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WD Black SN850X WDS400T2X0E 4 TB
without radiator

Photos - SSD WD Black SN850X WDS400T2X0E 4 TB without radiator
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WD WDS400T2X0E
2022Black (consumer high class)PCI-E 4.0NVMeDRAM buffer5 years
1 TB
without radiator
1 TB
with radiator
2 TB
without radiator
2 TB
with radiator
4 TB
without radiator
4 TB
with radiator
8 TB
without radiator
8 TB
with radiator
Placement
internal
Size
4000 GB
Form factor
M.2
M.2 interface
PCI-E 4.0 4x
Controller
SanDisk 20-82-20035-B2
Cache memory
4000 MB / DDR4 /
Memory type
3D TLC NAND
NVMe
Write speed
6600 MB/s
Read speed
7300 MB/s
Write IOPS
1100 K
Read IOPS
1200 K
TBW
2400 TB
DWPD
0.3 times/day
Manufacturer's warranty
5 years
TRIM
Size
22x80 mm
Weight
8 g
Official Website
shop.sandisk.com
Added to E-Catalog
September 2022
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog WD 2026 - new arrivals, bestsellers, and the most relevant models WD.
TLC, QLC, MLC, SLC: which type of drive memory is better?Important differences between the types of NAND memory TLC, QLC, MLC, SLC, which determine the scope of their use and development prospects
How to choose the right SSDChoosing an SSD with the required speed and good reliability for home, work and gaming

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without radiator

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Western Digital WDBLACK SN850X - PCI Express 4.0 NVMe M.2 SSD - 4 TB

Clove.co.uk
Delivery: to United Kingdom
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£503.96
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WD Black SN850X 4TB M.2 PCIe 4.0 Gen4 x4 NVMe SSD PC/PS

Scan.co.uk
Delivery: to United Kingdom
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£679.98
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Sandisk Black 4TB SN850X NVMe SSD Supremely Fast PCIe Gen4 WDS400T2X0E

.three-cols { display: flex; width: 100%; gap: 20px; } .thr... moreee-cols > div { flex: 1; min-width: 0; text-align: center; padding: 15px; } .three-cols img { width: 50px; height: 50px; object-fit: contain; } .three-cols span { display: block; font-size: 12px; margin: 10px 0 5px 0; word-wrap: break-word; } .three-cols h3 { font-size: 16px; margin: 0; word-wrap: break-word; } Sequential Read Performance 7300MB/s Interface PCIe Gen4 x4 Warranty 5-Year Limited Warranty DESIGNED FOR TOP-TIER GAMING Elevate your gaming experience with the WD_BLACK SN850X NVMe™ SSD, designed to eliminate load times and reduce throttling, lag, and texture pop-ins. Ranging from 1TB to a massive 8TB, this high-performance gaming drive reaches incredible speeds of up to 7,300MB/s (for 1TB - 4TB variants). With an optional heatsink to ensure sustained performance, dive into your favorite games without the fear of interruptions. Plus, the WD_BLACK Dashboard, available for Windows®, effortlessly enables Game Mode 2.0, giving you a seamless, competitive edge. Experience lightning-fast gameplay with the WD_BLACK SN850X NVMe™ SSD. ACHIEVE UNMATCHED ADVANTAGE IN GAMING Experience lightning-fast speeds reaching up to 7,300 MB/s with the 1TB to 4TB models, ensuring unparalleled performance and astonishingly brief load times. Elevate your gaming adventures to a whole new level with this cutting-edge technology, designed for those who demand the very best. Don't settle for anything less than t...
Senetic.co.uk
Delivery: to United Kingdom
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£991.67
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WD WD Black SN850X 4TB SSD M.2 2280 NVME PCI-E Gen4 Solid State Drive (WDS400T2X0E) WDS400T2X0E

Unlock blisteringly fast load and boot times courtesy of the WD Black SN850X 4TB NVMe PCIe 4.0 M.2 SSD. Armed with 4TB of sto... morerage, you’ll never need to worry about running out of space for your expanding gaming library, precious memories, work projects, and much more. PCIe 4.0 connectivity facilitates incredible data transfer rates for rapid responsiveness as and when you need it most. What’s more, thanks to 7300MB/s read and 6600MB/s write speeds, enjoy near-instant access to your files along with ultra-fast in-game load times. WD Black SN850X 4TB NVMe PCIe 4.0 M.2 SSD at a Glance: 4TB capacity 2280 M.2 form factor 7300MB/s read speed 6600MB/s write speed PCIe 4.0 connectivity Incredible Storage The WD Black SN850X 4TB NVMe PCIe 4.0 M.2 SSD has been engineered with gamers in mind, optimised to revolutionise your experience and keep you dominating the battlefield for longer. Harness the 4TB capacity to store your expanding library of games, precious family memories, music, and so much more. Thanks to rapid data transfer rates, you can quickly edit your files as and when you need to. What’s more, powerful PCIe 4.0 connectivity facilitates incredible responsiveness as you work or play, reducing unwanted lag or latency interrupting your workflow. In addition to this, 7300MB/s read and 6600MB/s write times deliver blazing fast in-game load times, eliminating any need to wait around while your favourite game boots up. Onboard technology, such as Game Mode 2.0, grants access to even more performance-driven features like load prediction to keep games running smoothly and assets loading faster. The 2280 M.2 form factors mean this SSD is compatible with a wide range of modern-day motherboards that feature a suitable M.2 slot. Plus, the sleek all-black look is sure to blend into the interior of your chassis with ease.
Overclockers.co.uk
Delivery: to United Kingdom
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£999.95
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4TB Western Digital Black SN850X M.2 2280 WDS400T2X0E

Strap in for breakneck gaming speeds with the WD_BLACK SN850X NVMe™ SSD. Crush load times and slash throttling, lagging... more, and model pop-ins for a smooth, fast experience that lets you compete at your absolute peak. This purpose-built gaming drive comes in capacities of 1TB to 4TB 1 , with an optional heatsink on the 1TB and 2TB drives to help sustain top-end performance for more consistent gameplay. With the advanced features of Game Mode 2.0 (Windows® only) plus speeds that approach the limits of the PCIe® Gen4 3 interface, the WD_BLACK SN850X NVMe SSD delivers top-tier performance to keep you playing, streaming, recording, and dominating the game. Get the Ultimate Gaming Edge Insane speeds up to 7,300 MB/s 2 deliver top-tier performance with ridiculously short load times for the elite gaming experience you’ve been waiting for. Soup Up Your Rig Extremely low latency loads graphics fast with minimal stutter and lagging for an incredibly smooth, satisfying gaming experience. More Room for More Games Today’s A-list titles can take up 200GB 1 or more of storage. A range of capacities from 1TB to 4TB 1 means you get to keep more games at the ready and get into the action fast. Heatsink for the Win The WD_BLACK SN850X NVMe™ SSD 1TB and 2TB 1 drives have an optional heatsink version that not only looks awesome but also helps your rig maintain peak performance through the most intense gaming sessions. Game Mode 2.0 The latest version of Game Mode serves up even more PC performance-boosting features like load prediction to ready game assets for fast in-game loading. Near-Max PCIe® Gen4 3 Speeds The WD_BLACK SN850X NVMe™ SSD delivers output approaching the limits of the PCIe® Gen4 interface to help you get ultra-fast performance out of your storage and system components. 1. 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment. 2. Based on read speed, unless otherwise stated. 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. 3. PCIe Gen4 storage technology requires a compatible motherboard. WD_BLACK SN850X is backwards-compatible with PCIe Gen3. 4. For PS5™ firmware compatibility, please visit http://wdblack.com/SN850HS-PS5.
CCLonline.com
Delivery: to United Kingdom
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£1,027.99
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Series WD Black (consumer high class)Compare using chart →
User reviews 2
Write Review →
High-quality SSD with low temperatures
2 December 2025 
A good SSD that is on par with the KC3000, but runs hotter. It's almost the same drive, but with some minor drawbacks in terms of temperature. The drive itself is quite high-quality and maintains normal temperatures under the motherboard's secondary heat sink.
Cache, quality, similarity to KC3000
Temperature in some scenarios
Sriblo: use WD WDS100T2X0E more than year
Comments 1
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wonderful model, really honored
23 August 2024 
Corresponds to the declared speeds
Not a bad price/performance ratio
I still peeled off the sticker, under the native x570 radiator, after running CrystalDiskMark, it was 5 degrees lower at the peak
Dmitriy Mitus: use WD WDS200T2X0E less than month
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WD Black SN850X WDS400T2X0E configurations

Price for WD Black SN850X WDS400T2X0E
WD Black SN850X WDS100T2X0E 1 TB
without radiator
from £139.9920 offers
WD Black SN850X WDS100T2XHE 1 TB
with radiator
from £243.9910 offers
WD Black SN850X WDS200T2X0E 2 TB
without radiator
from £246.3916 offers
WD Black SN850X WDS200T2XHE 2 TB
with radiator
from £277.6913 offers
WD Black SN850X WDS400T2X0E 4 TB
without radiator
from £503.9611 offers
WD Black SN850X WDS400T2XHE 4 TB
with radiator
from £544.999 offers
WD Black SN850X WDS800T2X0E 8 TB
without radiator
from £1,059.987 offers
WD Black SN850X WDS800T2XHE 8 TB
with radiator
from £1,180.909 offers
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