Seagate Barracuda 1TB 3.5-Inch 7200RPM 32MB Cache SATA 6.0Gb/s Internal Desktop Hard Drive Box Contents - Barracuda 3.5 1TB internal Hard Drive, SATA Interface Cable, SATA Power Adapter, CD with software and manual, Quick installation Guide, Mounting Screws Delivers the high capacity of 1TB (1000GB) of Storage Serial ATA connection for fast 3Gb/s data rate transfer speeds High performance 32MB cache buffer and 7200RPM drive Seatools - Fast easy to use diagnostic software