Three USB ports and one RJ-45 LAN port supporting 100Mbps/BASE-T performance. Compatible with USB 2.0/1.1, with a transmission rate of up to 480Mbps. Ethernet network supports 100Mbps high-speed transmission. Supports TCP/IP, NetBEUI, IPX/SPX protocols. Compatible with Windows 98SE/2000/ME/XP/Vista/7/8/10, Mac OS, and Linux (Kernel). Compatible with Android 4.0 and above, plug and play. Equipped with 3 USB ports; can be connected to a 5V power supply for additional current. Network card function powered via USB, low power consumption, no external power required. Item Name: USB Hub Lan Adapter Material: Plastic Features: Plug and Play, Lightweight, High Speed Size: 74mm x 24mm x 12mm / 2.91" x 0.94" x 0.47" (Approx.) Note: Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Please allow slight dimensional differences due to manual measurement. Package Includes: 1 x USB Hub Lan Adapter