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Western Digital Ultrastar DC SN840 7.68 TB 2.5" PCI Express 3.1 NVMe 3D TLC

Western Digital Ultrastar DC SN840, 7.68 TB, 2.5"

Best offerPrice trend

£947

-18%
Price trend
Detailed analysis ›
Price history of Western Digital Ultrastar DC SN840 7.68 TB 2.5" PCI Express 3.1 NVMe 3D TLC over the last 3 months
DatePrice
7 July 2026£1,161
16 July 2026£1,160
22 July 2026£1,171
30 July 2026£1,177
6 August 2026£1,165
14 August 2026£1,163
21 August 2026£1,152
2 September 2026£1,159
10 September 2026£1,161
17 September 2026£1,169
24 September 2026£1,186
26 September 2026£949
2 October 2026£951
2 October 2026£947

Compare Western Digital Ultrastar DC SN840 7.68 TB 2.5" PCI Express 3.1 NVMe 3D TLC prices UK

*Date of last price update

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Product Information

Accelerate Access to Critical Data for Data-Intensive Workloads and Applications
Ultrastar NVMe series SSDs perform at the speed of today’s business needs. Enabling faster intelligence & access to critical data, these SSDs meet the growing digital demands of your business applications.

Performance NVMe Ultrastar DC SN840 SSDs deliver extreme performance & ultra-low latency to the top tier of enterprise storage. With proven dual-port NVMe architecture, these drives are best suited for performance demanding platforms including HPC servers, mission-critical applications and workloads that require superior read/write performance and low latency.

Mainstream NVMe Ultrastar DC SN640 SSDs are optimized for consistent quality of service and low latency for mixed random read/write workloads commonly generated by top enterprise applications such as virtualization, OLTP, NoSQL, web servers, file servers and mail servers. Ultrastar DC SN640 enables a seamless transition from SATA SSDs, delivering high performance for deeper insights & faster results for today’s data intensive applications.

Enterprise Solutions Made Better by NVMe
Everywhere data lives, from sensors to mobile devices to the cloud, we’re driving the innovation necessary to stay ahead of new demands. Our breadth of expertise and level of integration gives us an unmatched ability to deliver carefully calibrated solutions for every type and use of data.

Application Performance
Up to 503K Mixed RR/RW IOPS (70% Read, 30% Write, 4KiB)

Dual-port Leadership
2nd generation Western Digital designed dual-port high availability NVMe architecture

Endurance and Security
1 DW/D & 3 DW/D endurance options with TCG encryption and FIPS 140-2 validation (forthcoming)

Internal Solid State Drives Western Digital

Product

Name
Western Digital Ultrastar DC SN840 7.68 TB 2.5" PCI Express 3.1 NVMe 3D TLC

Weight & dimensions

Width
69.8 mm
Depth
100.5 mm
Height
15 mm

Operational conditions

Operating temperature (T-T)
0 - 70 °C
Storage temperature (T-T)
-40 - 85 °C

Power

Operating voltage
12 V
Power consumption (average)
18 W
Power consumption (idle)
6 W

Logistics data

Harmonized System (HS) code
84717070

Features

SSD capacity
7.68 TB
SSD form factor
2.5"
Interface
PCI Express 3.1
NVMe
Yes
Memory type
3D TLC
Hardware encryption
Yes
NVMe version
1.3c
Random read (4KB)
780000 IOPS
Random write (4KB)
160000 IOPS
Read latency
157 µs
Uncorrectable Bit Error Rate (UBER)
< 1 per 10^17 bits read
Mean time between failures (MTBF)
2500000 h

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