Multifunctional 5in1 USBC hub with 4K HDMI, USB 3.0 USB 2.0, a 100W PD charging port, and an RJ45 Ethernet port. The USBC hub adapter is compatible with devices that have a TypeC / USBC fullfunction interface connection, especially for Macbook Pro and Air. It is compact and portable, helping you expand a single laptop interface anytime, anywhere. 4K USBC HUB HDMI Supports video output up to 4K 3840 x 2160 at 30 Hz to HDTV, monitors, or projectors. Downward compatible with 2K / 1080p / 720p resolutions. Includes OTG function, enabling direct transfer of files, pictures, and videos from a USB stick to your smartphone. Note: Supply power to the HUB via the PD port while using HDMI for performance. Super Fast Charging Stable Internet Equipped with the latest smart chip; USBC port supports PD 3.0 / 2.0 fast charging. With an adapter rated for 100 W input power and 87 W output power, it is suitable for Macbook Pro / Air or other USBC devices (data transfer not supported on this port). Provides a wired Internet connection with speeds up to 100 Mbps. Super Speed Transmission USB 3.0 and USB 2.0 ports support up to two peripheral devices such as a mouse, keyboard, and hard disk. USB 3.0 offers up to 5 Gbps data transfer speed. Two USB ports can be used simultaneously, improving work efficiency. Use scenarios Desktop or laptop workstation: extend a 4K display via HDMI, connect USB peripherals, and use wired Ethernet for a stable network connection while keeping your laptop charged through the PD port. On the go with a Macbook Pro or Air: compact hub that provides HDMI display output, wired Internet, and USB peripherals while charging through PD. OTG file transfer: connect a USB stick to transfer files directly to a smartphone using the OTG function. Notes For performance, power the hub through the PD port when using the HDMI output. This hub supports power delivery for charging but the PD port is for power only; data transfer is handled by the USBA ports at up to 5 Gbps on USB 3.0.