USB Type C Hub Adapter Dual USB Type C Dock for Book Pro/Air

Usb type c hub adapter dual usb type c dock for book pro/air with 4k hdmi usb c usb 3.0 sd/tf card reader simple box grayproduct details usb type c hub adapter 7 in 1 dual usb type c dock for book pro/air 2018 - 2020 with 4k hdmi usb c usb 3.0 sd/tf card reader only compatible for book pro 2020/2019/2018/2017/2016, book air 2020/2019/2018 note: 1.if your book pro have a plastic case, you can not use it directly, please take off the plastic case. 2. we usethe certified connectors on the hub that will have a "click" when you full plug it into book, so please push it more harder. specifications: material: aluminum alloy color: silver/gray charging port: pd 2.0 operating temperature: 40-45 interface: 2* usb 3.1 type-c connector 1 * usb 3.1 type-c power delivery charging port 1 * usb c date transfer port 4gps 2 * usb 3.0 type-a port 1 * hdmi hd output port 1 * sd card slot 1 * tf card slot note: do not support usb superdrive. do not fit with book(pro) which owns a case/cover. pleas