The USB 3.0 to Gigabit Ethernet Adapter adds Gigabit Ethernet network connectivity to a laptop or desktop through a USB port. Backward compatible with USB 2.0 / 1.1 standards, the adapter is a versatile accessory for replacing a broken internal network card on either a desktop or laptop, adding a separately-routable network interface or transferring files at superfast speed over an Ethernet port. Specifications: Compatible with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, Supports IEEE 802.3az (Energy Efficient Ethernet), Upstream port type: USB 3.0 type A, Downstream port type: Ethernet (RJ45). System Requirements: Supports Windows 2000 / XP / Vista / 7 / 8(32/64-bit), Mac OS 10.6 or higher. Package Contents: USB 3.0 to Gigabit Ethernet Adapter, Instruction Manual, Driver Disk for Windows and Mac. Product Features: USB 3.0 male A to RJ45 female adapter supporting 10/100/1000 Ethernet. Supports backpressure routing and IEEE 802.3x flow control for full-duplex (FDX) and half-duplex (HDX) systems. Supports crossover detection and auto-correction and Wake-on-LAN (WOL). Powered via USB - no external power adapter needed, automatically saves power when Ethernet cable is unplugged. Free lifetime technical support and 18 months manufacturer warranty from Anker. Product Specifications: USB Type SuperSpeed USB 3.0,Output Type 1000M Gigabit Ethernet Compatible Windows 2000 / XP / Vista / 7 / 8(32/64-bit), Mac OS 10.6 or higher, Function USB 3.0 to Gigabit Ethernet port, Length 150mm