Description: 100% Brand New. Compatible with your Windows， Mac OS or 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 Size: 105 x 36 x22mm Material: ABS USB Ports: 4 USB type: USB 3.0Compliant with USB version: USB1.01.5Mbps (Low-Speed). USB1.112Mbps (Full-Speed). USB2.0480Mbps (High-Speed). USB3.05Gbps (Super-Speed). Compatible Systems: Windows 2000/ XP/ Vista/ 7/ Linux/ Mac OS 10. X or abovePackage including: 1 x USB 3.0 Hub