HP 626978-001 - 320GB SATA hard disc drive - 7,200 RPM, 2.5-inch form factor, 9.5mm height, Self-Encrypting Drive (SED) - Raw drive Retail
HP 618245-001 - 320GB SATA hard disc drive - 7,200 RPM, 2.5-inch form factor, 9.5mm height, raw, Self-Encrypting Drive (SED) Part 618245-001 626978 Retail