Add extra functionality to your laptop with the USB-C to USB10Gbps & HDMI 4K144Hz Adapter. This adapter allows you to add an additional monitor, connect to a 10Gbps USB Type-A or USB-C for connecting high-speed USB peripherals. Also includes a USB-C Power Delivery port that can be used to charge your laptop when a USB-C power adapter is connected. Display Alt Mode for HDMI supports a resolution up to 4K144Hz with Primary, Extended, and Mirrored display modes. The JCA399G supports upstream charging and Power Delivery 3.0 100W to keep your connected laptop or tablet powered up while in use.