Features: 4K(3840*2160)@30Hz High Resolutions Enables you to mirror or extend the display of your laptop/phone to your HDTV, monitor or projector in up to 4K(3840x2160)@30Hz resolutions. Enjoy high quality image movies with sounds on a big screen. Super Speed USB3.0 USB3.0 transfer speed up to 5Gbps, easy to transfer HD movies in a seconds. Backward compatible USB2.0, you can connect USB flash disk, camera, removable hard drive, mouse, keyboard to you laptop. Compatible Devices (NOT Full List) Laptops(Popular Devices): MacBook Pro 15 & 13”, 2019 / 2018 / 2017 / 2016 MacBook, 2019 / 2018 / 2017 / 2016 / 2015 iMac & iMac Pro, 2019 / 2018 / 2017 Dell XPS 15 / 13 Surface Book 2 / Surface Pro 7 / Surface Go HW MateBook 13/14 Sam Note Book/Galaxy Book Series Tablets/Phones(with DP Alt Mode):iPad Pro 2018 S21/S20/S10 / S9 / S8 / Note 10 / Note 9 / Note 8 HW P40/ P40 Pro/ Mate30/ Mate30 Pro/ Mate20/ Mate20 Pro/ Mate20 X/ Mate10/ Mate10 Pro/ P30/ P30 Pro/ P20/ P20 Pro. Please Note: Only work with devices whose USB-C port supports data transfer and power in as well as video out functions(DP Alt Mode). Just plug and play and no extra drivers required (for MacBook, click the gear Settings> click Display> in Arrange mode> Mirror Display> select Display Resolution> Enjoy! 10 PC, Plug in the USB-C multi-port adapter and insert the HDMI cable, the PC will automatically reset to activate the adapter and release the mouse, after which you can enjoy HDTV and use an additional USB 3.0.) HDMI Female Output Port Mirroring Apple MacBook or Lenovo Yoga 900 or Google Chromebook Pixels or Dell XPS 13 Display to HDMI-enabled TV or UHD 2160P (3840x2160) Displayed at 60Hz up to 1080P or at 30Hz