Descripition The PD just used for charging, not transfer. HD transmission, 4K can only displayed if the connnect cable is 4K. USB-c is only suitable for transmission. If you want to connnect display frequency, you can only use HD.
Premium aluminum design: high-end material adopted to ensure high durality and best-in-class experience; pairs with your upscale laptop perfectly.
Travel ready: extremely compact design makes it easily portable and saves desktop space. It also comes with SD/TF Card Reader, so you have extra storage room to spare.
Highest definition & streaming: Start streaming the highest resolution videos and shows via its 4K HD port. Need a 4K connect cables. (Not include) The USB 3.0 Ports support faster transfer up to 5Gbps, quick files sharing, no more waiting.
Specification: The Normal speed measurement is 80 to 100Mbps.
USB 3.0: Hight speed USB 3.0 transmit 5GB/S, Power supply up to 4.5W max.
USB C Female port: 20V@3A, Support max 87W power adapter,
USB C male: copatible with thunderboil 3, Make sure that the host USB-C port on your device complies with the USB 3.0 / 3.1. SD /
TF card reader: SD and TF cards can work simultaneously, read and write speed depands on cards' quality. Can read two cards at the same time only when used on a computer.
Material: Aluminum alloy.
Color: grey.
Size: show as pictures.