Features: compatible with your for Windows, for Mac OS or for Linux systems. 1 upstream and 4 downstream USB port. 4-port USB 3.0 hub with super speed transfer rate up to 5Gbps. Backwards compatible with USB 2.0 & 1.1. Supports hot swap. Built-in over-current protection to protect both connected devices and the hub itself from unforeseen power surges. Plug and Play, no driver needed. Light weight, small size, easy to carry. Specifications: Color: Black Material: ABS USB Ports: 4 USB type: USB 3.0 Compliant with USB version: USB1.0:1.5Mbps (Low-Speed). USB1.1:12Mbps (Full-Speed). USB2.0:480Mbps (High-Speed). USB3.0:5Gbps (Super-Speed). Compatible Systems: for Windows 2000/ for XP/ for Vista/ 7/ for Linux/ for Mac OS 10. X or above Package List: 1 x 4 Ports USB 3.0 HUB