Fujitsu 500GB 2.5" 5.4K SATA II, 500 GB, 5400 RPM, 2.5", Serial ATA II Fujitsu 500GB 2.5" 5.4K SATA II. HDD capacity: 500 GB, HDD speed: 5400 RPM, HDD size: 2.5", Interface: Serial ATA II