Seagate 1TB Pipeline HD SATA 6Gb/s NCQ 64MB Cache 3.5-Inch Internal Bare Drive (ST1000VM002) 1 TB storage capacity with an 8 MB cache Features SATA 6Gb/s NCQ interface Optomized for high-definition consumer and DVR applications Easy-to-manage multi-room video delivery of up to 16 simultaneous HD streams 24x7 operational profile to meet the always -on-demands of the DVR market Designed to meet Energy Star and other consumer power standards