Hann USB 2.0 Male to RJ45 Female 10/100Mbps Fast Speed LAN Gigabit Ethernet Network Free Driver Adapter for Apple MacBook Air MacBook Pro etc, Black Color Portable USB to Ethernet adapter connects a USB 2.0 equipped computer or tablet to a router, modem, or network switch to bring Fast Ethernet to your network connection Full 10/100 Mbps Fast Ethernet performance over USB 2.0's 480 Mbps bus--faster and reliable than most wireless network Operation system compatible with: Windows 10/8.1/8/7/Vista/XP, Mac OS X 10.6/10.7/10.8, and Chrome OS. Does not support Windows RT, or Android Compatible with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, 10BASE-T and 100BASE-TX networks No driver software is required, plug and play. Powered via USB - no external power adapter needed