A USB-C 5-in-1 multiport adapter typically expands a single USB-C port into five, usually combining a 4K HDMI port, a USB-C Power Delivery (PD) charging port (up to 100W), a Gigabit Ethernet port, and two USB-A 3.0/3.2 ports. It provides a portable, plug-and-play solution for docking laptops, tablets, and smartphones, enabling display, fast charging, wired internet, and peripheral connection simultaneously.