Connect a usb31 device extend your hdmi monitor and power your type c device extend your desktop with an hdmi enabled screentv use the usb31 5 gbps port to connect devices such as your flash drive camera or smartphonetablet also compatible with older usb 30 and 20 peripherals works on every usb type c device with displayport alternate mode charge your macbook while simultaneously using the hdmi amp usb31 connection supports power delivery 20 for high power charging up to 3a60w