transfer rate of Super-Speed USB-C interface can be up to 5Gb/sec (Max) Backward compatible with previous versions of USB ports ( 1.0, 1.1 & 2.0 ) & SATA hard disks ( 1.5G b/s) Compliance with Serial ATA Specification Revision 3.0 Supports 2.5" Mass Storage Class Drive. (Not work for 3.5" Disk) Supports Hot-Swapping and Plug and Play function