Internal Desktop Hard Drive - 12TB Capacity | 7200RPM Rotation Speed, 256MB Buffer Size, 3.5in Internal Hard Drive | Perfect for Desktop PC/Mac, NAS Network Storage, RAID Storage System, Surveillance System | Bare Drive Only, Single Pack, (No Screws, Cables or Accessories included) -Friendly Reminder- Please FORMAT HDD on system in order to be detected/shows on system.