Features: 1.Equipped with 4 USB3.0 expansion ports. Meet the demand of multiple ports. Portable design with abundant ports, and protect the original native PC interface. 2.The theoretical transmission rate is up to 5Gbps, which is multiple times of that of USB2.0. High-speed stable transmission. 3.Separate data cable design for easy storage and carrying. 4.With strong power and adaptability, it is a powerful helper for your business trip. 5.Suitable for WINDOWS XP/7/8/VISTA, for LINUX, for MAC OS and other mainstream computer operating systems. specification: 1. Equipped with 4 USB3.0 expansion ports. Meet the demand of multiple ports. Portable design with abundant ports, and protect the original native PC interface. 2. The theoretical transmission rate is up to 5Gbps, which is multiple times of that of USB2.0. High-speed stable transmission. 3. Separate data cable design for easy storage and carrying. 4. With strong power and adaptability, it is a powerful helper for your business trip. 5. Suitable for WINDOWS XP/7/8/VISTA, for LINUX, for MAC OS and other mainstream computer operating systems. 6. Multi-device support, widely used. 7. Built-in overvoltage, overcurrent, leakage and short circuit protection modules can effectively protect the connected equipment and HUB security. s: Chip: VL812 Power mode: dual mode power supply: USB power supply mode and DC power supply mode support hub and various peripherals plug and play, hot swap function Colour: Black Package List: 1 * Hub 1 * Power supply 1 * Connector cable 1 * User manual