Dell WXMHJ / Western Digital / WD Ultrastar SN640 0TS2350 / 0TS1952 / WUS4CB080D7P3E3 800GB 2.5" 3D TLC NAND ISE PCIe 3.1 NVMe 1.3 U.2 SSD
Model Number : WUS4CB080D7P3E3
Capacity : 800GB
Feature : Instant Secure Erase (ISE)
Interface : PCIe Gen 3.1 x4 (Compliant to NVMe 1.3)
Form Factor : U.2 2.5-inch drive
Endurance (Drive writes per day, DW/D) : 2
Flash Memory Technolgoy : WDC BiCS4 3D TLC NAND
Sequential Read (max MB/s, 128KiB, QD128) : 3340
Sequential Write (max MB/s, 128KiB, QD128) : 1200
Random Read (max IOPS, 4KiB BS, QD128) : 434,000
Random Write (max IOPS, 4KiB BS, QD128) : 113,000
Random Mix R70/W30 (max IOPS, 4KiB BS, QD128) : N/A
Random Read Latency (4KiB BS, QD1, 99.99%)(μs) : 79
Uncorrectable Bit Error Rate (UBER) : <1 in 10 17
EOL Data Retention : 3 months at 40°C
MTBF : 2M hours
Annual failure rate (AFR) : 0.44%
Requirement (DC +/- 10%) : 12V
Operating Power States (W, typical) : 10, 11, 12
Idle (W, average) : 5.80
Operating Temperature : 0°C to 78°C
Non-Operating Temperature : -40°C to 85°C
Width (mm) : 69.85 +/- 0.25
Length (mm, max) : 100.45
Weight (g, max) : 95
z-height (mm) : 7.00 + 0.2 / - 0.5 (including lables)
Temperature : 0°C to 70°C (Case)
Airflow (LFM) : N/A


