Excellent Services: We have strong confidence in the quality of our products, that's why this c to hdmi adapter is covered with 60 days free return/refund, 18 months warranty and 24hours online technical support. If you have any question about our product, please do not hesitate to contact us for answer!. Universal Compatibility: USBC to hdmi adapter compatible with all USB Type-C devices that supports video output function, such as MacBook Pro/Air, iMac 2017-2020, iPad Pro/Air, XPS, Surface Book/Laptop, Surface Pro, Galaxy S22/S21/S20/S10/S9, etc. If you don't know your USB-C device support this function or not, please contact us for answer. ?If you don't know whether your device support DP Alt mode or not, contact us!?. Plug and Play: There is a built-in intelligent chip of this thunderbolt to hdmi converter, allows you to plug and play, no extra power or software required, support simultaneous video and audio transmission.?If you want to return, please make sure you did not damaged the product otherwise you will not get full refund!?. HD Resolution: This USB-C hdmi adapter supports resolutions up to 4K (3840x2160) @30Hz, backwards compatible with 1080P and 720P resolutions, meet the different resolution of your monitor. ?Please make sure this is what you need before ordering! If you're not sure, contact us!?. USB-C to HDMI Converter: This is the perfect solution for connecting USB Type-C device (supports DP Alt Mode) to an HDMI input device like HDTV or projector for enjoy HD visual feast, widely used at home, office, school, etc. ?Please make sure your USB-C device support DP Alt function before ordering!?.