4 TB Enterprise Hard Drive / Western Digital (WD) / Ultrastar Series / Recommended for Data Centers and High-Capacity NVRs / High Performance

Main Features

• Ultrastar SATA series hard drives are built from the ground up to be an ultra-robust storage device.
• Designed with a workload rating of up to 550TB per year.
• Ideal for mission-critical enterprise applications such as enterprise servers, storage subsystems, surveillance analysis, and industrial environments.
• HelioSeal technology offers higher capacities with the lowest $/TB and Watts/TB to minimize Total Cost of Ownership (TCO).

High Workload Rating

Offering reliable performance for any storage environment, Ultrastar drives are designed to handle up to 550TB per year, higher than any other 3.5-inch hard drive.

HelioSeal® Technology

HelioSeal technology enables the highest capacities and reduced turbulence in large storage arrays. Now in its fourth generation, HelioSeal technology has proven to deliver high capacity, reliability, and energy efficiency.

Enterprise-Class Storage

With up to 2.5 million hours MTBF rating, Ultrastar hard drives offer reliability and durability for 24x7x365 operation in demanding environments, with a 5-year limited warranty.

Compatibility Testing

All Ultrastar hard drives are extensively tested across OEM storage systems, SATA controllers, DVR/NVRs, and bus adapters to ensure easy Plug and Play integration.

Vibration Protection

Enhanced Rotational Vibration Safeguard (RVS) uses sophisticated electronic technology to monitor the drive and correct linear and rotational vibrations in real time.

Dual-Stage Actuator Technology

Dual-stage actuator head positioning system with piezoelectric movement for higher precision in head positioning.

Dynamic Fly-height Technology

Adjusts the fly-height of each read/write head in real time to ensure performance consistency, reduce errors, and optimize reliability.

7200 RPM Speed

This 7200 RPM hard drive offers the fastest performance with the highest workload rating of any high-capacity drive from Western Digital.