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: BlackSize: 105 x 36 x22mmMaterial: ABSUSB Ports: 4USB 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 Content:1 x USB 3.0 Hub1 x USB 3.0 Cable