Western Digital Ultrastar DC SN861 7.68TB E1.S PCIe 5.0 NVMe SSD
| Technical details | |
| Device type | SSD |
| Weight & dimensions | |
| Weight | 95 g |
| Height | 15 mm |
| Width | 33.8 mm |
| Depth | 118.8 mm |
| Energy management | |
| Operating voltage | 12 V |
| Power consumption (idle) | 5 W |
| Power consumption (max) | 21 W |
| Operational conditions | |
| Storage temperature (T-T) | -40 - 85 °C |
| Operating temperature (T-T) | 0 - 70 °C |
| Other features | |
| SSD endurance rating | 1 DWPD |
| Features | |
| Drive capacity | 7.68 TB |
| Interface | PCI Express 5.0 |
| Security algorithms | TCG Opal 2.0 |
| Mean time between failures (MTBF) | 2500000 h |
| Memory type | TLC 3D NAND |
| ECC | ![]() |
| Read speed | 13.7 MB/s |
| Write speed | 7 MB/s |
| S.M.A.R.T. support | ![]() |
| Random write (4KB) | 235 IOPS |
| Random read (4KB) | 2850 IOPS |
| Component for | Server/workstation |
| Uncorrectable Bit Error Rate (UBER) | < 1 per 10^17 bits read |
| Read latency | 70 µs |
| Write latency | 10 µs |
| Enhanced Power Loss Data Protection technology | ![]() |
| Hardware encryption | ![]() |
| SSD temperature monitoring | ![]() |
| Product type | SSD disk |
| PCI Express interface data lanes | x4 |
| End-to-End Data Protection | ![]() |
| SSD form factor | E1.S |
| NVMe | ![]() |
| NVMe version | 2.0 |
| Temperature monitoring and logging | ![]() |
| Drive writes per day (DWPD) | 1 |
| EAN | 0619659215316 |
| Warranty | 5 years |
This internal solid state drive is engineered specifically for demanding data center and enterprise workloads, utilizing the PCI Express 5.0 x4 interface for high host bandwidth. Sequential data transfer capabilities include up to 13,700 MB/s reading and 7,000 MB/s writing. Optimized for high-throughput applications like AI and machine learning, the drive delivers efficiency and low-latency access for critical operational tasks. The architecture incorporates high-density TLC 3D NAND technology, ensuring sustained performance within enterprise environments.
The Ultrastar DC SN861 features the specialized E1.S form factor, designed for optimal fit and cooling within high-density server rack systems. Reliability specifications include a Mean Time Between Failures (MTBF) rating of 2.5 million hours and an endurance specification of one Drive Write Per Day (DWPD). Data integrity is maintained through enhanced power loss protection and comprehensive end-to-end data path protection. Security protocols include TCG Opal 2.01 support and integrated hardware encryption capabilities for securing sensitive workloads.
Key Features:- 7.68 TB storage capacity
- E1.S form factor for server integration
- PCI Express 5.0 x4 interface
- NVMe 2.0 protocol support
- Up to 2,850,000 random read IOPS (100% span)
- Up to 235,000 random write IOPS (100% span)
- 70 µs read latency and 10 µs write latency
- Maximum power consumption of 21 W
- TCG Opal 2.01 hardware encryption support
- End-to-End Data Path Protection enabled
Estimated delivery: 09.03 - 11.03
Today: 10:00 - 18:00
Estimated delivery: 09.03 - 11.03
Today: 09:00 - 17:00
Estimated delivery: 09.03 - 11.03
Today: 10:00 - 17:00
Estimated delivery: 09.03 - 11.03
Today: 10:00 - 18:00
Estimated delivery: 09.03 - 11.03
Today: 10:00 - 17:00
Estimated delivery time: 09.03 - 11.03
Estimated delivery time: 09.03 - 10.03
Estimated delivery time: 10.03 - 11.03
Estimated delivery time: 10.03 - 11.03
Estimated delivery time: 10.03
Estimated delivery time: 09.03 - 11.03
Estimated delivery time: 09.03 - 11.03
Estimated delivery time: 10.03
- leaflet (English)

