Ultrastar SN640 NVMe™ Data Center SSD
Features
- Western Digital NVMe 1.3 compliant controller; PCIe Gen3x4
- Western Digital BiCS4 96L 3D TLC NAND
- 0.8 and 2.0 DWPD
- Full data-loss protection
- MTBF rating of 2 million hours
- Instant Secure Erase (ISE) and AES-256 encryption
- 5-year limited warranty
Applications
- Cloud and hyperscale storage
- Software Defined Storage
- File, Block and Object Storage applications
- Direct-attached Storage (DAS)
- Hyper-converged Infrastructure
- Virtualization
TECHNICAL SPECIFICATIONS
| GENERAL | |
| Endurance | 2DW/D |
| Capacity | 6400GB |
| Model Number | WUS4CB064D7P3E3 |
| PN | 0TS1955 |
| Security | ISE |
| Form Factor | U.2 |
| Interface | PCIe Gen 3.1 x4 |
| NVMe Specification (Complaint) | 1,3 |
| PERFORMANCE | |
| Read Throughput (max MiB/s, Seq 128KiB) | 3100 |
| Write Throughput (max MiB/s, Seq 128KiB) | 1800 |
| Read IOPS (max, Rnd 4KiB) | 469,000 |
| Write IOPS (max, Rnd 4KiB) | 116,000 |
| Mixed IOPS (70/30 R/W, max, 4KiB) | 304,000 |
| Latency (µs, 4KiB Random Read QD1, 99%) | 225 |
| Maximum Petabytes Written | 23,36 |
| RELIABILITY | |
| Unrecoverable Bit Error Rate (UBER) | 1 in 1017 |
| MTBF (M hours) | 2 |
| Annualized Failure Rate (AFR) | 0.44% |
| Limited Warranty | 5 years |
| POWER | |
| Requirement (+/- 10%) | +12 V |
| Operating (W, typical) | 10,11,12 |
| Idle (W, average) | 4.89 |
| PHYSICAL SIZE | |
| Z-Height (mm) |
7.00 +0.2/-0.5 (including labels) |
| Dimensions (width x length, mm) | 69.85 (+/- 0.25) x 100.45 |
| Weight (g, max) | 95 |
| ENVIRONMENTAL | |
| Operating Temperature | 0° to 70° C |
| Non-operating Temperature | -40° to 85° C |