【Function】- This ethernet to usb adapter allows you to use USB cable as ethernet cable to connects USB equipped ADSL modem or router that has USB socket. (It CAN NOT allow you to get network directly from router to your laptop!) Please read the whole description before ordering! Otherwise DON'T BUY! | 【Connecting Type】USB 2.0 Female to RJ45 Ethernet 8P8C Male, but please NOTE that you need a PoE data switch for use. Also this adapter can only work in 2 devices (one USB and one Ethernet Device), does not work for USB 1.1 either (Printer style USB). | 【Instruction】1. Using the RJ45 male end connects to the computer's RJ45 network jack, the other end of USB 2.0 female connects to the USB port of the dialer or router. 2. This rj45 male to usb 2.0 female adapter can also be used for an ADSL modem that has USB interface. | 【Adaptability】USB to RJ45 adapter can also be used with a range of telephony applications such as VOIP, you can easily connect and transfer data between networks with this USB female to RJ45 male Ethernet adapter (requires a PoE data switch to work). | 【Important Note】It can not be guaranteed that this USB to RJ45 Ethernet Converter will work for every given application because of differences among hardware brands, Please do not directly connect this USB to RJ45 Ethernet adapter from a RJ45 port to a USB port for obtaining network connection, you will not succeed.