Hitachi HDE721050SLA330 500GB Hard Drive Hitachi Deskstar E7K1000 500GB SATA/300 7200RPM 32MB Hard Drive Hitachi Deskstar E7K1000 500GBHard Drive Notes: Hitachi Series: Deskstar E7K1000 Model: HDE721050SLA330 P/N: 0A39510Product Requirements: Serial ATA controller Serial ATA data cable Serial ATA power cable Available 3.5-inch drive bay