2 x 1TB , SATA 3 , 8MB Cache, Hitachi HGST HGST HTS541010A9E680 low power 700mA. 1 x 1TB , SATA 3 , 16MB Cache, Samsung Spin Point ST1000LM024 low power 850mA 3 disks have in between 4000 to 6000 hours, see SMART. Cheap, can be used for CCTV, NAS or PC, gaming console All tested and securely wiped
eBay