4X90K86567 Lenovo USB C to USB C / HDMI Adapter : The Lenovo USB-C to HDMI Adapter turns an available USB-C port into an HDMI 1.4 compliant output, with high resolution video support and audio. The Lenovo USB-C to HDMI Adapter can be used to mirror your primary display or to extend your display to double your workspace requiring no extra drivers to be installed.