Easy to Use, Plug and Play USB Type C: With USB-C devices (compatible with Thunderbolt 3) to HDMI or VGA HDMI Output?Support Video and Audio output, Maximum resolution can up to 4KX2K@ 30 Hz VGA Output : The maximum resolution is 1920X1080P@60 Hz Note: When displaying simultaneously, both sides display 1080P resolution. Two Usage Modes Extend your working desktop with mirroring or extending display to enhance work efficiency. Note:Two display screes are the same.extend mode only work for laptop. USB Type C Compatible Devices (Not a full list): Laptops: 2020/2019 MacBook Pro, 2018/2017/2016 MacBook, 2017 i Mac Chromebook, Chromebook Pixel surface Book 2, Surface go Smart Phone: Samsung Galaxy S8/S9/Note 8/Note 9 Huawei MATE10/MATE10 PRO/P20/P20PRO LG G5 HTC: ULTRA, M10 Microsoft: 950,950X Systems: Google Chrome OS; Windows7 / 8/10; XP; Linus; Vista Please Note: The video/audio output ONLY works for device with Type-c port 3.1 or Thunderbolt 3 which needs to support DP Alt Mode and has video output.so check your device instruction book before purchase.