Maximum extension,Most USB interfaces Update your Computer to 7 ports USB3.0-2 Port Type C and 5 ports Type A, You can connect keyboard, mouse, external hard drives, CD/DVD drives, webcams,usb printers, scanners, game controllers,USB VR, digital cameras, etc. Improve quality and efficiency supports transfer rates of up to 5Gbps copying HD videos, music, photos,data files between USB devices and the computer at blazing fast speeds.Note:The actual transmission speed is limited by the setting of the device connected.