Works with 13" and 15" MacBook Pro 2016/2017/2018/2019 & new MacBook Air 2018/2019 High-Resolution 4K HDMI Experience crystal clear 4K HDMI video on compatible 4K monitors for brilliant high-resolution display. Requires a direct HDMI to HDMI connection. High-Speed USB-C Delivers the fastest USB-C capable of 40Gbps data transfer, 4K video output, and 90W power delivery. Convenient Expansion Ports Additional two USB-A 3.0 ports, microSD and SD memory card slots for quick data transfer. MacBook Matching Design Precision milled aluminium enclosure, available in Space Grey and Silver, with the same color, appearance and design lines as the MacBook Pro/Air. Compatible Devices 2016/2017/2018/2019 MacBook Pro 2018/2019/2020 MacBook Air