Western Digital Ultrastar DC SN655 15.4 TB U.3 PCI Express 4.0 NVMe 3D TLC NAND
Western Digital Ultrastar DC SN655, 15.4 TB, U.3, 6800 MB/s
| Date | Price |
|---|---|
| 9 March 2026 | £6,169.99 |
| 18 March 2026 | £5,081.99 |
| 24 March 2026 | £3,098.99 |
| 30 March 2026 | £5,160.99 |
| 5 April 2026 | £3,118.99 |
| 12 April 2026 | £3,114.99 |
| 21 April 2026 | £3,104.99 |
| 28 April 2026 | £2,944.99 |
| 3 May 2026 | £2,924.99 |
| 9 May 2026 | £16,266.99 |
| 14 May 2026 | £16,266.99 |
| 21 May 2026 | £16,266.99 |
| 30 May 2026 | £16,266.99 |
| 2 June 2026 | £16,266.99 |
Compare Western Digital Ultrastar DC SN655 15.4 TB U.3 PCI Express 4.0 NVMe 3D TLC NAND prices UK
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Product Information
Western Digital Ultrastar DC SN655. SSD capacity: 15.4 TB, SSD form factor: U.3, Read speed: 6800 MB/s, Write speed: 3700 MB/s, Component for: Server/workstation
Product
- Name
- Western Digital Ultrastar DC SN655 15.4 TB U.3 PCI Express 4.0 NVMe 3D TLC NAND
- Category
- Internal Solid State Drives
- Brand
- Western Digital
Weight & dimensions
- Width
- 69.8 mm
- Depth
- 100.5 mm
- Height
- 15 mm
- Weight
- 147.3 g
Operational conditions
- Operating temperature (T-T)
- 0 - 70 °C
- Storage temperature (T-T)
- -40 - 85 °C
Power
- Operating voltage
- 12 V
- Power consumption (idle)
- 8 W
Features
- SSD capacity
- 15.4 TB
- SSD form factor
- U.3
- Interface
- PCI Express 4.0
- NVMe
- Yes
- Memory type
- 3D TLC NAND
- Component for
- Server/workstation
- NVMe version
- 1.4b
- Read speed
- 6800 MB/s
- Write speed
- 3700 MB/s
- Random read (4KB)
- 1100000 IOPS
- Random write (4KB)
- 125000 IOPS
- Read latency
- 100 µs
- Write latency
- 15 µs
- Uncorrectable Bit Error Rate (UBER)
- < 1 per 10^17 bits read
- Mean time between failures (MTBF)
- 2500000 h
- Windows operating systems supported
- Yes
- Linux operating systems supported
- Yes
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