Features: 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 and auto-correction, Wake-on-LAN power management and remote control Supports IEEE 802.3az (Energy Efficient Ethernet) 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 Supports full duplex operation with IEEE 802.3x flow control and half duplex operation with back-pressure flow control Ideal portable replacement network adapter or laptop accessory Suitable for Chromebook, Macbook Air, Windows, Android Tablets. Specifications: Color: Black Size: 11 x 3.2 x 2 cm Cable Length: 13 cm Body Material: ABS plastic Interface Type: USB3.0 AM, RJ45 Supports 10 / 100 / 1000 Mbps System Support: Windows 8 / 7 / Vista (32 / 64bit), XP, 2003 / 2000, MAC OS X, Linux Environment: Operating temperature 0-85, relative humidity 5-90; storage temperature -10-95, relative humidity 0-90 Package Includes: 1 x 3 Port USB3.0 Ethernet Adapter