WD Ultrastar DC SN640

7680 GB, 2.5"
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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).

Key specifications

Protocol
NVMe
Read transfer speed
3100 MB/s
Write transfer speed
1800 MB/s
Max. random 4K read
467000 IOPS
Max. random 4K write
65000 IOPS

General information

Item number
16393603
Manufacturer
WD
Category
SSD
Manufacturer no.
0TS1930
Release date
2.3.2020

Data storage properties

SSD type
U.2 SSD
Form factor
2.5"
Storage capacity
7680 GB
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
SSD Features
AES encryption
Max. TBW
11.21 TB
MTBF
2000000 h

Power supply

Power consumption (standby)
5 W
Power consumption
12 W

Origin

Country of origin
China

Sustainability

Manufacturer commitment
SBTi

Product dimensions

Length
10.05 cm
Width
6.99 cm
Height
0.70 cm
Weight
95 g

Package dimensions

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
  • 7.MSI
    0.6 %
  • 7.Patriot
    0.6 %
  • 14.WD
    0.7 %
  • 15.Intel
    0.8 %
  • 15.Silicon Power
    0.8 %

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
  • 9.Kioxia
    2 days
  • 9.Silicon Power
    2 days
  • 9.WD
    2 days
  • 14.Lexar
    3 days
  • 14.Samsung
    3 days

Return rate

How often is a product of this brand in the «SSD» category returned?

Source: Digitec Galaxus
  • 9.Kingston
    1.9 %
  • 9.Samsung
    1.9 %
  • 11.WD
    2.2 %
  • 12.Raspberry Pi
    2.3 %
  • 13.SANDISK
    2.4 %
Source: Digitec Galaxus