USB 2.0 Ethernet 10/100 Network LAN RJ45 Adapter Blue Support system: Windows 98, ME, 2000, XP, Vista, 7 (NOTE: Not for Apple MAC & Linux OS system) Full-speed (12Mbps) USB device Supports Full Duplex Flow Control (IEEE 802.3x) Packet include:1 x USB to Fast Ethernet Adapter, 1 x cd drive. Automatically negotiates 10/100 Mbps connection rate, depending on speed of the network