HDD Disk Platter Hard Drive Hard Disk Drive Capacity Form Factor GB Disk Drives Hard Disk The Heads Seagate Heads The Platters Interface SATA TB Power Enterprise Technology NDW Refurbished Hard Drive Almost Gone Factory Recertified DT 8MB NP 16MB Seagate Momentus Western Digital 250GB External Hard Drive Reg Price NESN 500GB SATA Hitachi Travelstar 320GB Seagate Barracuda Overstock