About this item •PLUG AND PLAY - DO NOT need to install any driver before use. Plug it into the USB-C port on your laptops, smartphones or tablets, it will work as expected. •CAUSTION NOTICE - DO NOT support extend mode in macOS, ONLY support mirror mode in macOS. Support both mirror and extend mode in Windows OS. ONLY support extend mode of A-B-B, NOT support extend mode of A-B-C. •4K UHD VIDEO ADAPTER - Support to mirror / extend your display to one individual monitor through HDMI port in 4K@30Hz or VGA port in 1080P@60Hz. Support to mirror / extend your display to two individual monitors simultaneously through HDMI port and VGA port in 1080P@60Hz resolution in the same time. •CONSTANT CONNECTIVITY - Require no extra power supply when using it due to bus-powered USB. It includes USB-C port for power delivery up to 60W, USB-A 5Gbps port for data transfer. •OS COMPATIBILITY - Support Windows 11 / 10 / 8.1 / 7 / Vista / XP, macOS X /11 BigSur / 12 Monterey, Chrome and Android. DO NOT support Linux.