Brand: Western Digital · SKU: WD4001FAEX-00MJRA0 · MPN: WD4001FAEX-00MJRA0 · Category: Storage
The WD4001FAEX is a high-performance 4TB 3.5-inch internal hard drive from the Western Digital Black series, designed for demanding desktop applications like photo/video editing and gaming. It features a 7200 RPM rotational speed, a 64MB cache buffer, and a SATA 6Gb/s interface. Key technologies include WD's Dynamic Cache Technology for real-time cache optimization and StableTrac Technology (on 2TB and larger models) to enhance reliability by securing the motor shaft against vibration. It also incorporates NoTouch Ramp Load Technology to protect the media and recording head. This model is often cited as having a five-platter design and is known for providing high capacity with best-in-class performance for a 7200 RPM spindle drive. It is now considered a discontinued part, sometimes found as used or refurbished.
| Capacity | 4 TB |
|---|---|
| Interface | SATA 6Gb/s |
| Form Factor | 3.5 Inch |
| Cache Buffer | 64 MB |
| Rotational Speed | 7,200 RPM |
| Load/Unload Cycles | 300,000 minimum |
| Advanced Format (AF) | Yes (logical 512e / physical 4096) |
| Recording Technology | Conventional Magnetic Recording (CMR) |
| Host to/from Drive (Sustained) | up to 154MB/sec |
| Warranty | 5 years (Original Limited Warranty) |
| Weight | 0.78 kg |
| Dimensions | Height: 26.1 mm, Depth: 147 mm, Width: 101.6 mm |
The WD4001FAEX is a high-performance 4TB hard drive in the WD Black line, featuring 7200 RPM speed and a 64MB cache. It is built for maximum performance in demanding PC applications and features technologies like Dynamic Cache and StableTrac. It uses a standard SATA III 6Gb/s interface.
Yes, this Western Digital WD4001FAEX Black 4TB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive (WD4001FAEX-00MJRA0) is 100% genuine Western Digital hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This Western Digital WD4001FAEX Black 4TB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the WD4001FAEX-00MJRA0.