bulk Data Storage In A Small Footprint.the Seagate Constellation.2 Drive Is The Only 2.5-inch Enterprise-class Hard Drive Delivering Both 1tb Capacities And Enterprise Reliability At The Industry's Lowest Power Consumption For Storage-hungry Nearline Applications. Self-encrypting Drive (sed) And Fips 140-2 Validated Sed Security Options Available To Help You Protect Your Data.maximizes Data Center Footprint With Up To 76tb Per Square Footenergy Efficient Storage At Under 3.9 Watts (idle)highest Nearline Reliability With An Mtbf Of 1.4m Hours6gb/s Performance In Both Sas And Sata Interfaces