Seagate Desktop HDD Barracuda 7200.9 80GB Serial ATA II 7200RPM 8MB 20pk bulk, 80 GB, 7200 RPM, 8 MB, 3.5", Serial ATA II Seagate Desktop HDD Barracuda 7200.9 80GB Serial ATA II 7200RPM 8MB 20pk bulk. HDD capacity: 80 GB, HDD speed: 7200 RPM, Storage drive buffer size: 8 MB, HDD size: 3.5", Interface: Serial ATA II