Available in 1TB to 20TB capacities. | 1As used for storage capacity, 1GB = 1 billion bytes and 1TB = one trillion bytes. Actual user capacity may be less depending on operating environment. Designed to handle workloads up to 550TB2 per year | 2Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred X (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations. Vibration protection technology for improved performance HelioSeal technology delivers high capacities with a low power draw (12TB and above) Energy-assisted magnetic recording (EAMR) and triple-stage actuator (TSA) (in 16TB capacities and above)