About this item USB C HUB 7 IN 1: The USB-C hub adapter is compatible with all devices that contain Type-C / USB ports, especially for MacBook Pro and Air. 7-in-1 USB-C HUB contains a USB 3.0 and a USB 2.0, a USB C port, a PD port, a 4K HDMI port and slots for SD / Micro SD card readers, compatible with MacBook Pro / Air, Chromebook and other types -C devices. So that you can solve the problem of a single laptop interface anytime, anywhere. USB C HUB 4K HDMI: The USB-C HUB supports high resolutions of up to 4K 3840 x 2160 @ 30 Hz and streams 4K or Full HD 1080p videos directly to HDTV, monitors or projectors and is backwards compatible with 2K / 1080p / 720p resolutions. Type C hub also supports OTG function, which allows you to transfer files / pictures / videos directly from the USB stick to your smartphone. Reminder: Supply power to the HUB via PD port while use HDMI to achieve perfect performance! Super practical multifunctional socket: The USB 3.0 port supports a transmission speed of up to 5 Gbit / s, USB 2.0, you can easily connect a USB keyboard, mouse, USB driver and USB hard drive to your laptop. The SD / TF slot can access files in a few seconds. The USB-C socket can transfer data to Type-C devices. Greatly improve work efficiency. (Note: SD / TF card cannot be read at the same time.) Dual-core technology, PD fast charge: Aviation aluminum case and optimized heat dissipation system ensure better heat dissipation and safe use. In combination with the integrated dual-core chip, which has a lower power consumption, all ports can work efficiently and the data transfer speed becomes higher. Supports up to 87W fast charging (Note: fast charging requires a fast charging adapter)