2-in-1 dual functionality: Three USB 3.0 ports and one 10/100/1000M Gigabit Ethernet Adapter Fast and stable: These USB 3.0 ports elevate data transfer speeds up to 5Gbps (or 10 X faster than USB 2.0). Gigabit Ethernet achieves 1000 Mbps operation, providing a faster, more stable connection than Wi-Fi. Smart and energy-efficient: Fully supports crossover detection , auto-correction, Wake-on-LAN power management, and remote control. Supports full duplex operation with IEEE 802.3x flow control and half duplex operation with back-pressure flow control. Extensive compatibility: Compliant with USB3.0, 2.0 and 1.1 specifications; supports Windows 8/7/Vista/XP and Mac OS X 10.8 and higher Ideal portable replacement network adapter or laptop accessory. Suitable for Chromebook, Macbook Air, Windows, Android Tablets Size: 11 x 3.2 x 2 cm, Cable Length: 13 cm