Features: Display devices for wireless connection, including televisions, projectors, displays. Multiple modes: for AirPlay, for DLNA, for Miracast, for AirMirror, for cross-system, cross-terminal screen mirroring. Full support for Netflix/YouTube/Google Chrome, video game apps and movie sites. High resolution, 4k*2k (3840*2160) 30Hz full HD HDMI output, processing speed increased by 50%. Wide range of applications for home theater, games, presentations, conferences. Plug and play, no application or driver required. 3 steps to enjoy the big screen experience: plugging, connecting, mirroring. When transferring data from a Micro/Secure Digital Memory card, up to three USB devices can be connected at the same time, making it easier to handle multiple tasks. 3-port USB 3.0, data transfer speeds up to 5Gbps, and USB 3.0 readers offer up to UHS-I (95MB / s) read speed, faster and more convenient than most card readers on the market. (Double mode reading. Two cards at the same time) Specifications: Material: ABS+metal Frequency: 30Hz Resolution: 4K*2K Video format: 1080P, AVI, FLV, MKV, MOV, RM, TS, VOB Audio format: AAC, APE, FLAC, MP3, OGG, WAV, WMA Photo format: BMP, GIF, JPEG, JPG, PNG, TIFF Package list: 1 x USB-C Hub Note: Please check compatibility before purchasing. The perfect solution for C-type notebooks, tablets and mobile phones that support OTG. Compatible for MacBook 12inch, New for MacBook Air 13inch 2018, for MacBook Pro 13inch 15inch 2019/201/2017/2016, for iMac 2018/2017, for Dell XPS 13 9350/9360, for ASUS ZenBook3, for Lenovo Yoga 920, for ChromeBook, etc. Not compatible for MacBook Air 13inch A1369/A1466 (2009 - 2017), for MacBook Pro(2008 - 2015 version), for MacBook 12 (pre-2015 version) or any other laptop without Type-C port. Not suitable for Thunderbolt 2 port. Not available for SuperDrive. 1、Display devices for wireless connection, including televisions, projectors, displays. 2、Multiple modes: for AirPlay, for DLNA, for Miracast, for AirMirror, for cross-system, cross-terminal screen mirroring. 3、Full support for Netflix/YouTube/Google Chrome, video game apps and movie sites. 4、High resolution, 4k*2k (3840*2160) 30Hz full HD HDMI output, processing speed increased by 50%. 5、Wide range of applications for home theater, games, presentations, conferences.