5-in-1 Expansion: You can use this small and light hub to convert one of your laptop's USB-C ports into a 100W PD-IN port, two USB-A ports, a 5 Gbps USB-C port, and a 4K HDMI port. 4K Display: To mirror or expand your display to 4K@30Hz, use the HDMI port to connect to an external monitor. Multi-Port File Transfer: To move movies, music, and other files at up to 5 Gbps, connect to both the USB-C and two USB-A ports. Strong Pass-Through Charging Capability: Pass-through charging up to 100W (minus 15W for operation) is supported, allowing you to charge your laptop while using the hub. Immediate Growth Simply plug in to add two USB-A ports, an HDMI port, and a USB-C port to your laptop.