Simply adds three USB 3.0 ports and one Gigabit Ethernet port (RJ45) to desktop, laptop, or tablet computer via single USB port Includes Type-C (Male) to Type-A (Female) adapter to use with desktop or laptop with USB Type-C port SuperSpeed USB 3.0 interface supports data transfer rates up to 5Gbps and backward compatible with USB 2.0/1.1 devices RJ-45 connector provides reliable wired network connection with speeds up to 1000 Mbps, supports half and full-duplex operation and Wake-on-LAN Compatible with Windows and Mac operating systems Tuck-away USB cable design reduces cable clutter and tangles, compact size provides great portability and easy storage Powered by USB port, no external power adapter required