Western Digital 4 TB WD Ultrastar DC HC310 HUS726T4TALA6L4 256 MB (0B35950)

Enterprise-class storage to rely on: Ultrastar is the top-end drive for data centres; with up to 2.5 million hours MTBF, Ultrastar drives deliver reliability and durability within the most demanding storage environments All backed with a 5-year limited warranty High workload rating: Ultrastar hard drives are designed with a workload rating up to 550TB per year* - among the highest of any 3.5 Inch hard drive *Workload rate is defined as the amount of user data transferred to or from the hard drive and will vary depending on your hardware and software components and configurations HelioSeal technology: Featured in over 30 million Western Digital hard drives shipped*, HelioSeal technology allows for higher capacities and lower power on large storage arrays; * as of July 2018 HelioSeal technology is field-tested and proven to deliver high capacity, reliability and power efficiency you can trust; available on 10 TB capacities and above Compatibility testing: All Ultrastar hard drives are extensively tested across a variety of popular OEM storage systems, SATA controllers and host bus adapters to ensure ease of integration for a plug and play solution 7200RPM-class: This family of 7200RPM-class hard drives delivers the fastest performance with the highest workload rating of any drive in Western Digital's hard drive lineup Ensure you have the most capable hard drive regardless of the application with Ultrastar hard drives