Western Digital WD4001FAEX 4TB 7200 RPM 64MB SATA 3.5" internal hard drive

Capacity and interface

The Western Digital WD4001FAEX is a 4TB 3.5-inch desktop hard drive that connects through a SATA 6.0Gb/s interface. It spins at 7200 RPM and includes a 64MB cache to support demanding workloads. The Black series targets power-computing users who need sustained throughput for large files and heavy multitasking.

Installation notes

The bare drive fits any standard 3.5-inch bay and uses the common SATA data and power connectors, so no special cables or brackets are required. Because it is a mechanical drive, handle it by the edges and avoid shocks while the platters are spinning. The only common issue is forgetting to initialise the new volume in the operating system before use.

Sustained load behaviour

Under continuous write or read workloads the dual-processor architecture helps maintain consistent transfer rates rather than throttling after a short burst. Average latency is rated at 4.2ms, which keeps response times predictable during long rendering, backup or database tasks. The rock-solid mechanical architecture is designed to resist vibration-induced performance drops during extended operation.