Seagate Desktop HDD Barracuda 7200.8, 300GB, 20 pack, 300 GB, 7200 RPM, 8 MB, 3.5", Serial ATA Seagate Desktop HDD Barracuda 7200.8, 300GB, 20 pack. HDD capacity: 300 GB, HDD speed: 7200 RPM, Storage drive buffer size: 8 MB, HDD size: 3.5", Interface: Serial ATA