Western Digital Ultrastar 4TB internal hard drive

When you are looking for economical, high-capacity enterprise-class storage, look to the Ultrastar® 7K6000. Designed to handle workloads up to 550TB per year, it delivers the value and performance you need for data center storage. With outstanding random write and sequential performance, the Ultrastar 7K6000 delivers 6TB of capacity in a 3.5-inch form factor. Innovations like patented Rotational Vibration Safeguard (RVS) sensor technology optimize drive reliability in multi-drive RAID arrays and rack-mounted systems. Engineered for the highest quality, the Ultrastar 7K6000 passes stringent reliability testing. The ultra-reliable Ultrastar 7K6000 reduces downtime, eliminates service calls and minimizes TCO. Rely on the Ultrastar 7K6000 to deliver value and performance to the cost-sensitive data center.