ITEM NAME:4-Port USB 3.0 High Speed Extension Charger Adapter Switch New Description Material: electronic components Cable length: 30cm Packing: 1pcs 4-port USB3.0 hub Specifications: USB power supply mode and DC power supply mode USB3.0 ultra-high-speed transfer rate, transfer rate up to 5Gbps per second Backward compatible with USB2.0, USB1.1 Support hub and peripheral devices Plug and Play and Hot Plug function 4 port current overload detection and protection function design Built-in LED indicator can display USB power supply, DC power supply, USB peripheral device connected to each USB port connection status No need to install any drivers Compatible with operating systems such as Windows 7/Vista/XP Transmission rate: 5Gbps Connection interface: USB 3.0 x 4 High quality store for you! 4-port USB3.0 high speed hub.Connection interface: USB 3.0 x 4. 4 port current overload detection and protection function design. Support hub and peripheral devices Plug and Play and Hot Plug function. 4-port USB3.0 high speed hub.