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Western Digital
Western Digital Red Plus internal hard drive 4 TB 5400 RPM 256 MB 3.5" Serial ATA III
    SKU    
WD40EFPX
            In Stock
        
    4 TB, 3.5", SATA 6 Gb/s, CMR
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| Hard drive | |
|---|---|
| Component for | NAS | 
| HDD interface transfer rate | 6 Gbit/s | 
| Workload rate limit | 180 TB/year | 
| Mean time between failures (MTBF) | 1000000 h | 
| Start/stop cycles | 600000 | 
| Hot-swap | No | 
| HDD speed | 5400 RPM | 
| HDD size | 3.5" | 
| HDD capacity | 4 TB | 
| Features | |
| Type | HDD | 
| Component for | NAS | 
| HDD interface transfer rate | 6 Gbit/s | 
| Workload rate limit | 180 TB/year | 
| Interface | Serial ATA III | 
| Mean time between failures (MTBF) | 1000000 h | 
| Start/stop cycles | 600000 | 
| Native Command Queuing (NCQ) | Yes | 
| Hot-swap | No | 
| HDD speed | 5400 RPM | 
| HDD size | 3.5" | 
| HDD capacity | 4 TB | 
| Storage drive buffer size | 256 MB | 
| Advanced Format (AF) | Yes | 
| 24/7 operation | Yes | 
| Noise level (idle) | 23 dB | 
| Power | |
| Power consumption (standby) | 0.3 W | 
| Power consumption (idle) | 3.1 W | 
| Operational conditions | |
| Operating temperature (T-T) | 0 - 65 °C | 
| Storage temperature (T-T) | -40 - 70 °C | 
| Operating shock | 70 G | 
| Non-operating shock | 250 G | 
| Technical details | |
|---|---|
| Quantity per pack | 1 pc(s) | 
| Compliance certificates | RoHS | 
| Interface | Serial ATA III | 
| Mean time between failures (MTBF) | 1000000 h | 
| Native Command Queuing (NCQ) | Yes | 
| Hot-swap | No | 
| Weight & dimensions | |
| Width | 101.6 mm | 
| Weight | 570 g | 
| Height | 26.1 mm | 
| Depth | 147 mm | 
| Packaging data | |
| Quantity per pack | 1 pc(s) | 
| Other features | |
| Interface | Serial ATA III | 
| Native Command Queuing (NCQ) | Yes | 
| Compliance certificates | RoHS | 
 
    