This is a Linksys USB200M 10/100 USB 2.0 Network Adapter Version 2.1, an excellent device to quickly get your computer networked. There is no need for software installation, making it an easy setup for virtually any computer. The adapter is compatible with Linksys USB200M 10/100 and has Ethernet (RJ-45) Female as Connector B and USB 2.0 as Connector A. This device is ideal for those who are looking for a flexible and efficient way to connect to networks.