Crystal Clear 4K Vision: Through a single USB3.0 connection to the host, this hdmi adapter offers you a dual-monitor solution. Extend or mirror displays whatever you want. Supports resolutions up to 3840x2160@30Hz of 4K port and 1920x1080@60Hz of 2K port. Easily connect the 4K port for a feast of vision. Android devices support mirror mode ONLY with the resolution up to 1080P. Multiple Scenarios: The dual hdmi adapter is ideal for work using like web browsing, spreadsheets preparing and word processing. You can deal with multitasks or just preview your content on a big screen. However, for the best result, the adapter is not recommended for gaming or graphics-intensive work. And note that it doesn't support the playback of HDCP-protected content. Hybrid 2-in-1 Cable: Features a hybrid 2-in-1 cable, the dual monitor adapter is easily connected to USB-C, USB-A, thunderbolt 3/4, USB 4 devices and then mirror or extend your screen content to greatly improve your work efficiency.