Lenovo Select USB-C 4K Mobile Hub expands the capabilities of ultrabook. With USB-C passthrough power, you can connect and charge your ultrabook or USB accessories. Get a second screen experience and connect via HDMI (4K @ 30 Hz) or VGA Full HD (1920 x 1080p) video for improved productivity. With a compact design, it is easy to carry and eliminates the your needs for video adapter and dongles.