WD SN640 960GB SSD U.2 NVMe PCIe Gen 3.1 x4, 3000/1100MB/s, 413k/44k IOPS, 0,8DWPD

Model Information

Endurance˛

2 DW/D

2 DW/D

2 DW/D

2 DW/D

0.8 DW/D

0.8 DW/D

0.8 DW/D

0.8 DW/D

Capacity

800GB

1,600GB

3,200GB

6,400GB

960GB

1,920GB

3,840GB

7,680GB

Model number

WUS4CB080D7P3E3

WUS4CB016D7P3E3

WUS4CB032D7P3E3

WUS4CB064D7P3E3

WUS4BB096D7P3E3

WUS4BB019D7P3E3

WUS4BB038D7P3E3

WUS4BB076D7P3E3

Part Numberł

0TS1952

0TS1953

0TS1954

0TS1955

0TS1927

0TS1928

0TS1929

0TS1930

Maximum Petabytes Written˛

2.92

5.84

11.68

23.36

1.4

2.8

5.61

11.21

Configuration

Interface

PCIe Gen 3.1 x4 (Compliant to NVMe 1.3)

Form Factor

U.2 2.5-inch drive

Flash Memory Technology

Western Digital BiCS4 3D TLC NAND

Performance4

Read Throughput (max MiB/s, Seq 128KiB)

3K

3.1K

3.1K

3.1K

3K

3.1K

3.1K

3.1K

Write Throughput (max MiB/s, Seq 128KiB)

1K

2K

1.8K

1.8K

1.1K

2K

1.8K

1.8K

Read IOPS (max, Rnd 4KiB)

414K

473K

468K

469K

413K

472K

469K

467K

Write IOPS (max, Rnd 4KiB)

108K

116K

115K

116K

44K

63K

63K

65K

Mixed IOPS (max, 70/30 R/W, 4KiB)

184K

307K

286K

304K

111K

194K

174K

187K

Read Latency (µs, avg.)5

204

208

225

225

210

208

221

225

Reliability

Uncorrectable Bit Error Rate (UBER)

1 in 10ą7

MTBF6 (M hours)

2

Annualized Failure Rate (AFR)6

0.44%

Availability (hrs/day x days/wk)

24x7

Limited Warranty7 (years)

5

Power

Requirement (DC +/- 10%)

+12V

Operating Power States (W, typical)

10, 11, 12

Idle (W, average)

< 5W

Physical Size

z-height (mm)

7.00 +0.2/-0.5 (including labels)

Dimensions (width x length x mm)

69.85 (+/- 0.25) x 100.45

Weight (g, max)

95

Environmental

Operating Temperature8

0°C to 78°C

Non-Operating Temperature?

-40°C to 85°C