DELL HD 500 S3 7.2 512E 7 AQUACSLIM, C7F2G, 500 GB, 7200 RPM, 2.5", Serial ATA III DELL HD 500 S3 7.2 512E 7 AQUACSLIM, C7F2G. HDD capacity: 500 GB, HDD speed: 7200 RPM, HDD size: 2.5", Interface: Serial ATA III