This device is used to connect a laptop by a USB C 3.1 to the network by a RJ45 and also it give the option of connectin USB be devices to the computer, to transfer data. Features: - Gigabit Ethernet connection - 10/100/1000Mbps – auto- detection. - If the ethernet cable has a crossover pair, the device detects it, and automatically solves the problem (HP auto - MDIX) -Dynamic cable length detection and Dynamic power adjustment (Gigabit mode only) -Compliant with USB 3.1 Gen 1 and compatible with the rest of USB Gen. - Max data transmission 5Gbps - It works with the following software’s: o Mac OS X 10.6 i posteriors o Windows: 7 / 8 / 8.1 / 10