Seagate Constellation ES 4 TB 3.5 Inch SAS Internal Hard Drive Black

Product Type: Hard Drive Host interface: Serial Attached SCSI (SAS), Hard drive capacity: 4000 GB, Hard drive size: 3.5". Power consumption (typical): 11.86 W, Power consumption (idle): 7.80 W, Power requirements: +12V & +5V, Data transfer rate: 6 Gbit/s