USB Compatibility Support for Microsoft Windows®, Mac OS X®, and Linux with no driver or software installation necessary | USB-C or USB-A port requiredUnformatted Capacity 1TBUSB Package Contents EX100U USB External Storage, USB-C to USB-C cable, USB-C to USB-A cableSequential Read Write Up to 1600MB/s read / 1500MB/s write (USB 3.2 2x2)Max Sequential Read ATTO Up to 1600MB/sMax Sequential Read CDM Up to 1600MB/sMax Sequential Write CDM Up to 1500MB/sMax Sequential Write ATTO Up to 1500MB/s Interface USB 3.2 Gen2x2