Samsung Spinpoint M 250GB Spinpoint M7, 250 GB, 5400 RPM, 8 MB, 2.5", Serial ATA II Samsung Spinpoint M 250GB Spinpoint M7. HDD capacity: 250 GB, HDD speed: 5400 RPM, Storage drive buffer size: 8 MB, HDD size: 2.5", Interface: Serial ATA II