








🔴 Power your NAS with the drive that never sleeps!
The Western Digital 4TB WD Red Plus NAS Internal Hard Drive is a 3.5-inch SATA 6 Gb/s HDD designed specifically for NAS systems. Featuring 5400 RPM speed, 128 MB cache, and advanced vibration control technology, it delivers reliable 24/7 performance with an MTBF of up to 1 million hours. Built to optimize RAID environments and reduce noise, this drive ensures data integrity and longevity in multi-drive NAS setups.



| Brand | Western Digital |
| Product Dimensions | 14.7 x 10.16 x 2.61 cm; 600 g |
| Item model number | WD40EFPX |
| Manufacturer | Western Digital |
| Series | WD Red™ Plus NAS Hard Drive 3.5" |
| Color | Red |
| Form Factor | 3.5-inch |
| RAM Size | 4 TB |
| Hard Drive Size | 4 TB |
| Hard Disk Description | Solid State Drive |
| Hard Drive Interface | Serial ATA-600 |
| Hard Disk Rotational Speed | 5400 RPM |
| Number of USB 2.0 Ports | 1 |
| Number of USB 3.0 Ports | 1 |
| Wattage | 50 |
| Optical Drive Type | BD-R |
| Hardware Platform | Mac, PC |
| Are Batteries Included | No |
| Lithium Battery Energy Content | 2.6 British Thermal Units (BTUs) |
| Lithium Battery Packaging | Batteries contained in equipment |
| Lithium Battery Weight | 0.5 Milligrams |
| Number Of Lithium Ion Cells | 7 |
| Number of Lithium Metal Cells | 7 |
| Item Weight | 600 g |
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