7 in 1 USB C HubUSB C Hub works perfectly with the type C laptop devices with the multiport USBC adapter including 1 x USB TypeC charging port 1 x 4K HDMI 3 x USB 3.0 A ports 1 x SD/Micro SD card readerUSB C Hub to 4K HDMIMirror or extend the screen of type c devices with 4K30Hz video HDMI output to HDTV monitor or projector. Supports for expansion mode and mirror mode in Windows systems and Mac OS systems.Super Speed Data Transferthe USB hub with three USB 3.0 ports supports up to 5Gbps transmission speed and 5V/1.5A charging which is 10 times faster than USB 2.0 an HD film can be transferred within seconds.USB C Card ReaderBuiltin SD and TF slots transfer hundreds of photos to your laptop in seconds with a maximum speed of MB/s.W PD Fast ChargingThe PD charging port supports W20V/5A so you can charge your TypeC devices at high speed. Please note The TypeC PD charging port is only for devices with PD protocol.