IOGEAR Network Card GUC3100 USB3.0 Gigabit Ethernet Adapter Electronic Consumer Electronics Connectors (Input) RJ45 Connectors (Output) USB A 3.0 LEDs On Line:Green Light On: Ready to Link, Yellow Light Flashing: Data is Transmitting Transfer Rate 10/100/1000Mbps Network Protocol 10/100/1000 MB LAN Network Interface RJ-45 Ethernet 10base-T/100base-TX/1000base-T Operating System Support Windows Vista, Windows 7, Windows 8, Windows 8.1, Mac OS X 10... s-GUC3100