Seagate Desktop HDD Barracuda 7200.9 300 GB SATA NCQ 3Gb/s (20 pk), 300 GB, 7200 RPM, 16 MB, Serial ATA II Seagate Desktop HDD Barracuda 7200.9 300 GB SATA NCQ 3Gb/s (20 pk). HDD capacity: 300 GB, HDD speed: 7200 RPM, Storage drive buffer size: 16 MB, Interface: Serial ATA II