This listing is for a mixed lot of 5 hard drives, with capacities ranging from 80GB to 1TB, from manufacturers Toshiba, Hitachi, and Seagate. These drives are sold as-is and are intended for parts or repair, due to various issues indicated by SMART status, such as 'Caution' and 'Bad Sectors.' The drives have not been tested for full functionality and are recommended for those skilled in hard drive repair or seeking spare parts. They all turn on.