Product details
The WD Ultrastar DC SN640 is a powerful internal solid-state drive (SSD) with an impressive storage capacity of 7680 GB. It utilizes the advanced U.2 interface and NVMe protocol to ensure high data transfer rates. With a read speed of up to 3100 MB/s and a write speed of up to 1800 MB/s, this SSD is ideal for servers and workstations that require high performance and reliability. The use of 3D NAND technology with 96 layers and the 256-bit AES encryption algorithm provides both high storage density and security for sensitive data. The Ultrastar DC SN640 is designed for use in demanding environments, offering a robust solution for modern data storage needs.
- Read speed of up to 3100 MB/s
- Write speed of up to 1800 MB/s
- Maximum random 4k read performance of 467,000 IOPS
- Maximum random 4k write performance of 65,000 IOPS
- Supports Instant Secure Erase (ISE).
SSD type | U.2 SSD |
Interface | PCIe |
Protocol | NVMe |
Write transfer speed | 1800 MB/s |
Read transfer speed | 3100 MB/s |
Max. random 4K read | 467000 IOPS |
Max. random 4K write | 65000 IOPS |
Item number | 16393603 |
Manufacturer | WD |
Category | SSD |
Manufacturer no. | 0TS1930 |
Release date | 2.3.2020 |
External links |
SSD type | U.2 SSD |
Form factor | 2.5" |
Storage capacity | 7680 GB |
Interface | PCIe |
Protocol | NVMe |
Read transfer speed | 3100 MB/s |
Write transfer speed | 1800 MB/s |
Memory type (NAND) | TLC |
Max. random 4K read | 467000 IOPS |
Max. random 4K write | 65000 IOPS |
Storage Cooling | without heatsink |
SSD Features | AES encryption |
Power consumption (standby) | 5 W |
Power consumption | 12 W |
Country of origin | China |
Manufacturer commitment | SBTi |
CO₂-Emission | |
Climate contribution |
Length | 10.05 cm |
Width | 6.99 cm |
Height | 0.70 cm |
Weight | 95 g |
Length | 12.50 cm |
Width | 11 cm |
Height | 5.30 cm |
Weight | 123 g |
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «SSD» category have a defect within the first 24 months?
Source: Digitec Galaxus- 8.Innovation IT0.7 %
- 8.Kingston0.7 %
- 8.WD0.7 %
- 11.Crucial0.8 %
- 11.Gigabyte0.8 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- 13.SanDisk2 days
- 15.Synology3 days
- 15.WD3 days
- 17.Samsung4 days
- 17.Seagate4 days
Return rate
How often is a product of this brand in the «SSD» category returned?
Source: Digitec Galaxus- 13.Adata2.2 %
- 14.Verbatim2.3 %
- 15.WD2.4 %
- 16.Lexar2.5 %
- 17.Crucial2.7 %