Brand: HGST (Hitachi Global Storage Technologies, subsidiary of Western Digital) · SKU: HDN724040ALE640 · MPN: HDN724040ALE640 · Category: Storage
The HGST HDN724040ALE640 is a 4TB, 3.5-inch internal hard disk drive primarily designed for Network Attached Storage (NAS) and enterprise desktop applications. It features a 7200 RPM spindle speed, 64MB cache, and a SATA 6Gb/s interface for performance and reliability. This drive is built for demanding 24/7 operations, featuring a Mean Time Between Failures (MTBF) rating of 1 million hours (for the Deskstar NAS model) or 2 million hours (for the Ultrastar variant, HUS724040ALE640). It supports advanced error correction, vibration tolerance (Rotational Vibration Sensor on some variants), and is based on a proven five-platter design. It offers sustained sequential read/write speeds up to around 205 MB/s. The drive uses Advanced Format (4KB/sector) which is backward-compatible with 512-byte emulation (512e).
| Interface | SATA 6Gb/s (SATA/600) |
|---|---|
| Form Factor | 3.5-inch |
| Sector Size | 4KB/sector (512B/sector emulation) |
| Cache/Buffer | 64 MB |
| Acoustics (Idle) | 2.9 Bels (typical) |
| Rotational Speed | 7200 RPM |
| Storage Capacity | 4 TB |
| Max Media Transfer Rate | Up to 205 MB/s (or 204MB/sec) |
| Power (Performance Idle) | 6.9 W |
| Error Rate (Non-Recoverable) | 1 in 10^14 bits read |
| Warranty | 3 Years (for Deskstar NAS variant), 5 Years (for Ultrastar 7K4000 variant, e.g., HUS724040ALE640). Check with seller for specific item warranty. |
| Weight | 690 grams (1.52 pounds) |
| Dimensions | 3.5-inch Form Factor; 101.6mm (Width) x 147mm (Depth) x 26.1mm (Height/Z-height) |
The HGST HDN724040ALE640 is a high-capacity 4TB internal hard drive operating at 7200 RPM, making it suitable for performance-oriented NAS and enterprise desktop use requiring 24/7 reliability. Its SATA 6Gb/s interface and 64MB cache provide competitive throughput, with sustained transfer rates around 205 MB/s. Reliability is a key feature, specified with an MTBF of 1 million hours for the Deskstar NAS variant.
Yes, this HGST Deskstar NAS 4TB 3.5" SATA 7200 RPM 6Gb/s Internal Hard Drive (HDN724040ALE640) is 100% genuine HGST (Hitachi Global Storage Technologies, subsidiary of Western Digital) hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This HGST Deskstar NAS 4TB 3.5" SATA 7200 RPM 6Gb/s Internal 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 HDN724040ALE640.