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Ultra High Speed SD/Micro SD dual USB 3.0 card readers read and write at the same time, with data transfer speed up to UHS-I (95MB/s) - much faster than most card readers in the market. 4K@30Hz HDMI and three USB 3.0 ports with speed up to 5 Gbps
Video & Audio Output Mirror or extend your screen with the HDMI port to HDTV, monitor or projector for video and audio transfer. Support 3840x2160 4K@30Hz, 2560x1600 and lower resolutions at 60Hz
Plug & Play Used with no external drivers or power required; supposed to be used with portable devices such as wire keyboard, USB flash drive, 2.5mm external disk etc. (Note 1. Charging function is not supported. 2. Not for Superdrive)
Widely Compatible For MacBook Pro 2016 2017 2018 2019, New MacBook Air 2018 2019 - (Not for previous generation MacBook Air & Pro), MacBook 12, New iMac/Pro, Surface Book 2/Go, Chromebook, Pixelbook, more full-functional Type C devices. (S