Interface USB 3.1 | USB 3.0 and USB 2.0 compatible using included USB-C to USB adapter cable Interface Transfer 5Gb/s (maximum theoretical bus speed) Software LaCie Toolkit Software Suite System Requirements Computer with a USB-C or USB Type-A port Latest version of Mac OS® X 10.11 and later / Windows® 7 and later Minimum free disk space: 600MB recommended What’s Included LaCie Porsche Design Mobile Drive USB-C cable USB-C to USB-A cable Quick Install Guide Comments When referring to drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one thousand billion bytes. Your computer’s operating system may use a different standard of measurement and report a lower capacity. In addition, some of the listed capacity is used for formatting and other functions and will not be available for data storage.