BisLinks&reg; USB To Lan Rj45 Ethernet 10Mb/100Mb Network Adapter One end has the USB A Female end like the USB socket on a PC The other end is the 8P8C (RJ45) Male Plug These adaptors can also be used with a range of telephony applications such as VOIP It can not be guaranteed that it will work for every given application because of differences among hardware brands