Western Digital Ultrastar DC SN840 6.4 TB 2.5″ PCI Express 3.1 NVMe 3D TLC
- Up to 780k random read IOPS
- Capacities from 800GB to 30.72TB
- High-performance PCIe Gen 3
- Dual-port high availability for Ultrastar DC SN840, DC SN200
- Enterprise Data Durability Features
- 96-Layer 3D NAND for Ultrastar DC SN840, DC SN640 and DC SN340
- Ideal for common enterprise mixed-use workloads
- Enterprise-class reliability rating, 2.5M hour MTBF
Accelerate Access to Critical Data for Data-Intensive Workloads and Applications
Ultrastar NVMe series SSDs perform at the speed of today’s business needs. Enabling faster intelligence & access to critical data, these SSDs meet the growing digital demands of your business applications.
Performance NVMe Ultrastar DC SN840 SSDs deliver extreme performance & ultra-low latency to the top tier of enterprise storage. With proven dual-port NVMe architecture, these drives are best suited for performance demanding platforms including HPC servers, mission-critical applications and workloads that require superior read/write performance and low latency.
Mainstream NVMe Ultrastar DC SN640 SSDs are optimized for consistent quality of service and low latency for mixed random read/write workloads commonly generated by top enterprise applications such as virtualization, OLTP, NoSQL, web servers, file servers and mail servers. Ultrastar DC SN640 enables a seamless transition from SATA SSDs, delivering high performance for deeper insights & faster results for today’s data intensive applications.
Enterprise Solutions Made Better by NVMe
Everywhere data lives, from sensors to mobile devices to the cloud, we’re driving the innovation necessary to stay ahead of new demands. Our breadth of expertise and level of integration gives us an unmatched ability to deliver carefully calibrated solutions for every type and use of data.
Application Performance
Up to 503K Mixed RR/RW IOPS (70% Read, 30% Write, 4KiB)
Dual-port Leadership
2nd generation Western Digital designed dual-port high availability NVMe architecture
Endurance and Security
1 DW/D & 3 DW/D endurance options with TCG encryption and FIPS 140-2 validation (forthcoming)
| Features | |
|---|---|
| Mean time between failures (MTBF) | 2500000 h |
| Uncorrectable Bit Error Rate (UBER) | < 1 per 10^17 bits read |
| Read latency | 155 µs |
| Random write (4KB) | 253000 IOPS |
| Random read (4KB) | 780000 IOPS |
| Hardware encryption | Yes |
| Memory type | 3D TLC |
| NVMe version | 1.3c |
| NVMe | Yes |
| Interface | PCI Express 3.1 |
| SSD form factor | 2.5″ |
| SSD capacity | 6.4 TB |
| Power | |
|---|---|
| Power consumption (idle) | 6 W |
| Power consumption (average) | 18 W |
| Operating voltage | 12 V |
| Weight & dimensions | |
|---|---|
| Height | 15 mm |
| Depth | 100.5 mm |
| Width | 69.8 mm |
| Operational conditions | |
|---|---|
| Storage temperature (T-T) | -40 – 85 °C |
| Operating temperature (T-T) | 0 – 70 °C |
| General | |
|---|---|
| Product family | Ultrastar |
| Logistics data | |
|---|---|
| Harmonized System (HS) code | 84717070 |
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