World's Most Compact and Fastest (50Gb/s) Hub specifically designed for USB-C MacBook Pro 13 inch, MacBook Pro 15 inch and 2018 MacBook Air. Not using MacBook Pro/Air. Turns two USB-C ports on the MacBook Pro/Air into 7 ports (HDMI, 40Gb/s USB-C with Power Delivery, 5Gb/s USB-C with Power Delivery, SD, microSD, 2 x USB 3.1). 40Gb/s USB-C port supports video up to 5K or 2 x 4K at 60Hz, 40Gb/s data and max 100W power delivery to charge MacBook Pro/Air at full speed. Precision milled aluminum enclosure, available in Space Gray and Silver, with the same colour and appearance as the MacBook Pro/Air.