








🚀 Elevate your NAS game with WD Red Plus — storage that works as hard as you do!
The Western Digital 4TB WD Red Plus NAS Internal Hard Drive (WD40EFPX) is a 3.5-inch mechanical HDD engineered for network-attached storage systems. Featuring a 5400 RPM rotational speed, SATA 6 Gb/s interface, and 256MB cache, it delivers reliable, energy-efficient performance. With NASware firmware and support for up to 180TB/year workload, it ensures compatibility and durability in multi-bay NAS environments.




| Brand | Western Digital |
| Product Dimensions | 14.71 x 10.16 x 2.61 cm; 570 g |
| Item model number | WD40EFPX |
| Manufacturer | Western Digital |
| Series | WD Red Plus |
| Color | Red |
| Form Factor | 3.5-inch |
| Hard Drive Size | 4 TB |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Drive Interface | Serial ATA-600 |
| Hard Disk Rotational Speed | 5400 RPM |
| Voltage | 1 Volts |
| Hardware Platform | x86_64 |
| Are Batteries Included | No |
| Lithium Battery Packaging | Batteries only |
| Lithium Battery Weight | 0.19 Grams |
| Number Of Lithium Ion Cells | 1 |
| Number of Lithium Metal Cells | 1 |
| Item Weight | 570 g |
S**N
Good..
Good..
J**.
Not working
The drive is not working, and I am unable to initialize the disk. I bought two 4TB WD Red Plus NAS Hard Drives, neither of which is working. I bought them from Amazon UAE, and they came from Amazon UK. I cannot contact the seller!
T**T
Received a disk totally can not be used
I bought two SATAs at the same time and it is weriod that they shipped them separately, the first one worked fine, the second one waited three or four more days, but after receiving it, it was completely unusable, strange.
O**I
not good
bad quality- worked for 40 days only
A**H
Faulty desk
Noise comes out of the desk. This is very risky to loose the full data
Trustpilot
3 weeks ago
2 weeks ago