WESTERN DIGITAL Ultrastar DC SN840 2.5" 6400

Ultrastar® DC SN840 6.4TB

0TS2049

Features:

• Performance and Mainstream NVMe SSDs
• Capacities up to 15.36TB1 in U.2 2.5" form factor
• High-performance PCIe Gen 3
• 96-Layer 3D NAND for Ultrastar DC SN840, DC SN640 and DC SN340
• Up to 780k random read IOPS3
• Dual-port high availability for Ultrastar DC SN840, DC SN200
• Ideal for common enterprise mixed-use workloads
• Enterprise-class reliability rating, 2.5M hour MTBF

Specifications:

Capacity

• 6.4TB

Form Factor

• U.2 2.5-inch drive, 15mm

Interface

• Dual Port PCIe Gen 3.1 1x4 or 2x2

Endurance

• 3 DW/D

Flash Memory Technology

• WD 96-Layer 3D TLC NAND

Sequential Read (max (MB/s, 64KiB))

• 3,470

Sequential Write (max (MB/s, 64KiB))

• 3,200

Random Read (max IOPS, 4KiB)

• 780K

Random Write (max IOPS, 4KiB)

• 253K

Mixed Random Read/Write (max IOPS 70%R/30%W, 4KiB)

• 472K

Average Read Latency (μs, min)

• 82

Operating (W, max average)

• 18

MTBF

• 2.5 million hours

Annualized Failure Rate (AFR)

• 0.33%

Limited Warranty

• 5 years

Requirement (DC +/- 5%)

• 12V

Operating Temperature

• 0° C to 70° C

Width (mm)

• 69.85

Length (mm, max)

• 100.45

Weight (g, max)

• 184

z-height (mm)

• 15