| Description | WD HD3.5″ SATA3 4TB WD40EFAX |
| Manufacturer | Western Digital |
| Warranty | 36 Months Guarantee (service/returns via manufacturer) |
| Features | |
|---|---|
| HDD interface transfer rate | 6 Gbit/s |
| HDD sustained transfer rate | 180 MiB/s |
| HDD size | 3.5 “ |
| Interface | Serial ATA III |
| Type | HDD |
| Start (stop cycles) | 600000 |
| Workload rate limit | 180 TB/year |
| Noise level (idle) | 23 dB |
| Storage drive buffer size | 256 MB |
| Advanced Format (AF) | Y |
| 24 (7 operation) | Y |
| HDD speed | 5400 RPM |
| Mean time between failures (MTBF) | 1000000 h |
| Hot-swap | N |
| RoHS compliance | Y |
| HDD capacity | 4000 GB |
| Native Command Queuing (NCQ) | Y |
| Component for | NAS |
| Weight & dimensions | |
|---|---|
| Height | 26.1 mm |
| Width | 101.6 mm |
| Depth | 147 mm |
| Weight | 570 g |
| Power | |
|---|---|
| Power consumption (standby) | 0.4 W |
| Start-up current | 1.75 A |
| Operating voltage | 5 / 12 V |
| Power consumption (idle) | 3.1 W |
| Power consumption (read) | 4.8 W |
| Power consumption (write) | 4.8 W |
| Packaging data | |
|---|---|
| Quantity | 1 |
| Storage drive adapter included | N |
| Operational conditions | |
|---|---|
| Operating temperature (T-T) | 0 – 60 °C |
| Operating shock | 65 G |
| Non-operating shock | 250 G |
| Storage temperature (T-T) | -40 – 70 °C |
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