USB C HUB 4K HDMI: The USB-C dock supports high resolutions up to 4K 3840 x 2160 @ 30Hz and streams 4K or Full HD 1080p videos directly to HDTV, monitors orjectors and is backward compatible with 2K/ 1080p / 720p resolutions. Type-C Hub also supports OTG function, which allows you to transfer files/pictures/videos from USB to your smartphone directly. (Power the HUB from the PD port while using HDMI for perfect performance! )Quality Guarantee & Sincere : The slim and compact USB-C hub is compatible with almost all Type-C devices, compatible with Windows 10/7/8/XP/Mac OS/Linux/Android system. If you encounter anyductblem, you can always through Amazon and we will solve theblem for you.6 IN 1 USB C HUB: The USB-C hub adapter is compatible with all devices that contain Type-C / USB ports, especially for and Air. 6 in 1 USB-C HUB includes one USB 3.0 and one USB 2.0, one USB C port, one 4K HDMI port and SD/Micro SD card reader slots, compatible with /Air, Chromebook and other Type-C devices. So that you can solve theblem of a single laptop interface anytime, anywhere.Dual-Core Technology, PD Fast Charge: Aviation aluminum body and optimized heat dissipation system ensure better heat dissipation and safe use. Combined with the built-in dual-core chip, which has lower power consumption, all ports can work efficiently and the data transmission speed becomes faster. Supports fast charging up to 60W (Note: fast charging requires a fast charging adapter)Work More Efficiently: USB 3.0 ports support transfer speeds up to 5Gbps. USB 2.0 for accessing other devices such as 2.4G wireless mice and keyboards. The SD card and Micro SD card can be used with a fast transfer rate of up to 104m/s to transfer photos or videos captured by your camera from a card to a laptop in seconds. (Note: SD/TF card cannot be read at the same time.)