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Western Digital
Western Digital WD40EFPX 4TB 3.5" SATA 6Gb/s CMR NAS Hard Drive
Western Digital WD40EFPX 4TB 3.5" SATA 6Gb/s CMR NAS Hard Drive
4TB storage capacity | NAS-optimised performance | 24/7 operation | RoHS compliant
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£258.63 GBP
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£258.63 GBP
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Product Description:
The Western Digital WD40EFPX 4TB 3.5" SATA hard drive delivers dependable, high-capacity storage for demanding environments. Designed for 24/7 operation, this drive is perfect for NAS systems, offering advanced NASware 3.0 technology for enhanced compatibility, performance, and reliability.
Key Features:
- 4TB storage capacity
- 3.5" form factor
- SATA III 6Gb/s interface
- 5400 RPM speed
What's Included:
- 1 x Western Digital WD40EFPX 4TB 3.5" SATA Hard Drive
Warranty and Certification:
- 1-year manufacturer warranty
- RoHS compliant for environmental safety
Key Features:
- 4TB storage capacity
- 3.5" form factor
- SATA III 6Gb/s interface
- 5400 RPM speed
What's Included:
- 1 x Western Digital WD40EFPX 4TB 3.5" SATA Hard Drive
Warranty and Certification:
- 1-year manufacturer warranty
- RoHS compliant for environmental safety

Usage:
Install the hard drive into a compatible NAS enclosure. Use it to store, backup, and share digital content. Designed for continuous 24/7 operation in multi-drive NAS systems.
Key Product Details:
MPN: WD40EFPX
EAN: 2600010747964
Manufacturer: Western Digital
Condition: New
Technical Specifications:
| Type | HDD |
|---|---|
| Hdd Size | 3.5 " |
| Hot-Swap | No |
| Hdd Speed | 5400 RPM |
| Interface | Serial ATA III |
| Hdd Capacity | 4 TB |
| Component For | NAS |
| 24/7 Operation | Yes |
| Quantity Per Pack | 1 pc(s) |
| Start/Stop Cycles | 600000 |
| Noise Level (Idle) | 23 dB |
| Workload Rate Limit | 180 TB/year |
| Advanced Format (Af) | Yes |
| Compliance Certificates | RoHS |
| Storage Drive Buffer Size | 256 MB |
| Hdd Interface Transfer Rate | 6 Gbit/s |
| Native Command Queuing (Ncq) | Yes |
| Mean Time Between Failures (Mtbf) | 1000000 h |