Fast Ethernet USB 2.0 to RJ45 Adapter, Chipset: AX88772C (Windows 8.1 support), Connector 1: USB A male, Connector 2: RJ 45 female Ethernet: IEEE802.3, IEEE802.3u, Max. Transfer rate: 10/100 MBit/s, Automatic speed detection Compliance with USB 2.0 standard specification, LED for USB and network