Specifications: Three USB and one RJ-45 Lan port that supports 10/100Mbps/BASE-T performance. Compatible with USB2.0/1.1, transmission rate 480Mbps. Ethernet network supports 10/100Mbps high-speed transmission. Support TCP/IP, NetBEUI, IPX/SPX. Support for Windows 98SE/2000/ME/XP/Vista/7/8/10, for Mac OS, for Linux (Kernel). Free for Android 4.0 and above, plug and play. 3 USB ports, and it can also be connected to a 5V power supply to provide more current. Network card function powered by USB, low power consumption, no external power required. Item Name: USB Hub Lan Adapter Material: Plastic Features: Plug amp;Play, Lightweight, High Speed Size: 77mm x 38mm x 14mm/3.03inch; x 1.50inch; x 0.55inch; (Approx.) Notes: If the external device current requirements are too large, an external power supply can be used to enhance the power supply to ensure the normal operation of the USB device. Due to the light and screen setting difference, the item 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x USB Hub Lan Adapter