Western Digital WD Ultrastar Enterprise HDD 4TB 3.5' SAS 256MB 7200RPM 512E SE DC HC310 24x7 600MB Buffer 2mil hrs MTBF 5yrs wty HUS726T4TAL5204Western Digital WD Ultrastar 4TB 3.5' Enterprise HDD SAS 256MB 7200RPM 512E SE DC HC310 24x7 Server 2mil hrs MTBF 5yrs wty HUS726T4TAL5204 OVERVIEW Let Your Data Thrive with Ultrastar Quality, Capacity, and Power Efficiency Delivering highly dependable performance to any storage environment, Ultrastar hard drives are designed for demanding workloads (up to 550TB per year), 10 times the workload rating of desktop drives. Ultrastar drives employ advanced technologies for enterprise-class reliability and power efficiency, to deliver a lower total cost of ownership, so you can safeguard more of your valuable data. Western Digital is dedicated to providing a complete portfolio of hard drives to create environments for your data to thrive.. More Details please check Datasheet - 33nGzcN