Add extra functionality to your laptop with the JCA379 Usb-c to Hdmi and Usb 3.0 with Power Delivery. This device allows you to add an additional Usb 3.0, Hdmi monitor, and Usb-c that can be charged through your Usb-c port. The Usb 3.0 SuperSpeed port gives you data transfer rates up to 5 Gbps. Display Alt Mode for Hdmi supports a resolution up to 4K 30 Hz with Primary, Extended, and Mirrored display modes.