The USB-C to Dual HDMI adapter allows you to display content from your laptop on 2 screens at 3840*2160@30Hz simultaneously. When using only one HDMI interface, the resolution can reach 3840*2160@60Hz. Note: Ensure your laptop, monitor, and HDMI cable support 4K or 60Hz, otherwise the output will not be 4K or 60Hz; the actual resolution depends on your device and video source. Mirror and Extend Modes: The Type C to HDMI adapter supports three different modes under Windows. You can mirror your laptop or extend the screen to two identical or different external displays (AAA, ABB, ABC). Due to Mac OS limitations, it does not allow extending to two different screens (only compatible with AAA and ABB). Tablets/phones can only mirror one screen. Plug and Play: No driver/firmware required. The Wavlink USB C to HDMI adapter, with a high-quality aluminum alloy housing and optimal chipset, is a stylish and robust solution for expanding laptop screens. The adapter also features a safety system providing protection against overcharge, overload, and overheating. Broad Compatibility: Compatible with Mac OS, Windows, Linux, and Android systems with a USB-C port that supports \"DisplayPort Alternate Mode\".