CHOETECH USB C Digital AV Multiport Adapter Braided, USB 3.1 Type C to HDMI 4K Adapter with Power Delivery & USB 3.0 Charging Port Compatible with Samsung Galaxy Note 9/S9/S8, 2016/2017 MacBook Pro 3-in-1 USB C Digital AV Multiport Adapter: Lets you connect your USB Type-C device such as a Galaxy S9, MacBook or ChromeBook to an HDMI display, while also connecting a standard USB device and a USB Type-C charging cable.( For Mobile phones, it is ONLY compatible with galaxy S8) USB Type C Port: With Power Delivery is attached to. Connect a charging cable to the USB-C port to charge your MacBook 2015/2016, Chromebook Pixel, Dell XPS 15, Dell XPS 13 9350, Samsung Notebook 9 900X5L-K01, HuaWei Matebook. It is not suggested to be used with Lenovo Yoga 910. Original adapter is highly recommended to prevent overheating. Type C Port has a a downward compatibility feature, which support data transmission and seed of USB 3.0. HDMI Port: Allows you to mirror your USB Type-C device display to your HDMI-enabled TV or display in up to 4K ultra HD resolution. For better using experience, a high quality HDMI cable is required. USB 3.0 Type A Port: To connect devices such as your keyboard, mouse, HDD, flash drive or a USB cable for syncing and charging your smartphone or other devices. Only supports an external hard drive the size 2.5'' and capacity less than 1TB.