Supports 2.5" Mass Storage Class Drive. (Don't support 3.5" HDD); The cable comes with a USB A to USB C adapter, a small adapter to suit different computer needs.; Transfer rate of Super-Speed USB 3.0 interface can be up to 5Gb/sec (Max); UASP performs up to 70% faster Read Speeds and 40% faster Write Speeds than traditional USB 3.0.; Supports Hot-Swapping and Plug and Play function.