SanDisk WDS400T4B0E-00BKY0 4TB internal SSD
M.2 2280 NVMe drive stores 4 TB with sequential reads up to 5500 MB/s and 1200 TBW endurance
- Total capacity4 TB
- Sequential read speedUp to 5,500 MB/s
- Sequential write speedUp to 5,000 MB/s
- Interface typePCIe Gen4 16GT/s, up to 4 Lanes
- Form factorM.2 2280
- Product typeInternal Solid State Drive (SSD)
Style Faster
- Fast$54.99
- Faster$361.99
Capacity 4TB
- 500GB$118.99
- 1TB$146.99
- 2TB$400.99
- 4TB$361.99
- Holds large projects with 4TB capacity
- Reads files fast at up to 5500 MBps
- Writes data quickly at up to 5000 MBps
- High endurance rating of 1200 TBW
- Runs efficiently with 75mW average active power
4TB M.2 NVMe SSD for creators
The SanDisk WDS400T4B0E-00BKY0 is a 4TB internal solid-state drive built for consumer workloads. It fits the M.2 2280 slot and connects through a PCIe Gen4 x4 interface. The drive targets users who need large capacity for creative projects and everyday multitasking.
PCIe Gen4 x4 interface with HMB
The single specification that decides compatibility is the PCIe Gen4 16GT/s interface operating across four lanes. The controller uses host memory buffer technology instead of on-board DRAM. This design works with any motherboard that provides an M.2 key-M slot wired for PCIe 4.0 or 3.0 operation.
4TB capacity with 1200 TBW endurance
The 4TB volume holds extensive media libraries, project files and applications. Rated endurance of 1200 TBW supports heavy write workloads such as video editing and large dataset processing. Sequential reads reach 5500 MBps and writes reach 5000 MBps, while random performance hits 690000 read IOPS and 900000 write IOPS.
How it compares
Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.
- Price $361.99
- Pricier than about 73% of the 1,994 comparable items (median $180.49).
- Total capacity 4 TB
- Higher than about 90% of the 1,368 comparable items (median 1 TB).
- Sequential read speed Up to 5,500 MB/s
- Higher than about 72% of the 1,180 comparable items (median 2,400 MB/s).
- Price per TB $90.50 per TB
- Cheaper than about 89% of the 1,362 comparable items (median $165.50 per TB).
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Specifications
| Product | |
|---|---|
| Brand name | Western Digital |
| Product line | Blue SN5000 NVMe |
| Model name | WDS400T4B0E |
| Total capacity | 4 TB |
| Product type | Internal Solid State Drive (SSD) |
| Intended use | Consumer |
| Performance | |
| Sequential read speed | Up to 5,500 MB/s |
| Sequential write speed | Up to 5,000 MB/s |
| Random read (4K) | Up to 690,000 IOPS |
| Random write (4K) | Up to 900,000 IOPS |
| Storage | |
| Cache memory | No DRAM (HMB) |
| Write endurance | 1200 TB |
| Ports & slots | |
| Interface type | PCIe Gen4 16GT/s, up to 4 Lanes |
| Power | |
| Idle power draw | (Sleep) PS5: 5mW |
| Active power draw | Average Active Powe: 75mW |
| Size & build | |
| Form factor | M.2 2280 |
| Overall height | 2.38 mm |
| Overall width | 22 +/- 0.15 mm |
| Product depth | 80 +/- 0.15 mm |
| Product weight | 5.7g +/- 0.5g |
| Shipping weight | 0.05 kg |
| Package size | 127 × 102 × 25 mm |
| Environment & compliance | |
| Operating temperature range | 32 °F to 185 °F (0 °C to 85 °C) |
| Storage temperature range | -40 °F to 185 °F (-40 °C to 85 °C) |
| Max shock tolerance | 1,500G @0.5 ms half sine |
| Vibration tolerance | Operating Vibration: 5 gRMS, 10-2000 Hz, 3 axes Non-operating Vibration: 4.9 gRMS, 7-800 Hz, 3 axes |
| More details | |
| Mean time between failures | 1,750,000 h |
Other versions of this model
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Questions about this item
How does the 5500 MBps sequential read figure translate to everyday use?
The 5500 MBps sequential read speed means large files such as video projects or game assets load quickly when the drive is installed in a PCIe Gen4 M.2 slot.
What does the PCIe Gen4 x4 interface cap at in practice?
The PCIe Gen4 x4 interface supports up to 5500 MBps read and 5000 MBps write, with 690000 IOPS random read and 900000 IOPS random write.
What physical slot and form factor does the 4TB model need to fit?
The drive uses the M.2 2280 form factor and requires an M.2 slot keyed for PCIe NVMe.
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