[8-IN-1 USB] Expand a single USB-C port to connect more. The 8-in-1 USB-C adapter has 4K HDMI output ports, three USB 3.0 ports, Ethernet ports, and SD/TF card readers. Except that SD/TF card cannot be read at the same time, all hub ports can work at the same time.. [4K USB-C to HDMI Adapter] Use the USB C HDMI adapter to mirror or expand the screen. Direct transmission of up to 4K HD at 30Hz. Full HD 1080P or 3D video can also be streamed to an external HDTV display, monitor, or projector. Please confirm whether the USB - c port of the laptop supports TYPE-c video output before purchasing. [High speed data transmission] 3-port USB 3.0 allows you to connect USB flash drive, hard disk drive, keyboard, mouse, printer, thumb drive, etc. Access the maximum 5 Gbps data synchronization speed. SD and TF slots can easily access files from universal SD and Micro SD memory cards, and 1000Mbps Ethernet ports can ensure a more stable and faster wired network connection than wifi connections.