HGST Ultrastar 7K4000 4TB 3.5" SATA III 7200RPM Enterprise Hard Drive (HUS724040ALE640)

HGST Ultrastar 7K4000 4TB 3.5" SATA III Enterprise Hard Drive

The HGST Ultrastar 7K4000 was the world's first 4TB 7200 RPM enterprise hard drive to achieve a 2.0 million hour MTBF specification, backed by a full 5-year warranty. Built on HGST's sixth-generation 5-platter design — field-proven by top server and storage OEMs and Internet giants — the Ultrastar 7K4000 is engineered to reduce downtime, eliminate service calls, and minimize TCO in the most demanding 24/7 enterprise environments.

Every drive undergoes grueling design tests during development and must pass stringent ongoing reliability testing during manufacturing. With a 64MB cache buffer, SATA III (6 Gb/s) interface, and a suite of enterprise reliability technologies including Dual Stage Actuator (DSA), Thermal Fly-height Control (TFC), and Rotational Vibration Sensor, the Ultrastar 7K4000 delivers consistent, predictable performance in multi-drive server and storage array environments. RoHS compliant.

Key Features

• 2.0 Million Hour MTBF — World-class enterprise reliability specification
• Dual Stage Actuator (DSA) — Precision head positioning for improved reliability and performance
• Thermal Fly-height Control (TFC) — Dynamically adjusts head fly-height for consistent performance across temperatures
• Rotational Vibration Sensor — Compensates for vibration in multi-drive enclosures
• Advanced Format — Improved storage efficiency and error correction
• S.M.A.R.T. Support — Real-time drive health monitoring
• RoHS Compliant — Environmentally responsible design
• 5-Year Warranty — HGST's full enterprise coverage

Technical Specifications

• Capacity: 4TB
• Interface: SATA III (SATA/600), 7-pin
• Form Factor: 3.5"
• Spindle Speed: 7200 RPM
• Cache Buffer: 64MB
• Max External Transfer Rate: 600 MB/s (4.7 Gbit/s)
• MTBF: 2,000,000 Hours
• Weight: 1.52 lb
• Dimensions: 5.8" x 4" x 1"
• Part Number: HUS724040ALE640
• Warranty: 5 Years
• Device Support: Server, Storage System, NAS, RAID