The J5Create JCA379 USB-C HDMI and USB 3.0 with Power Delivery is a versatile adapter that allows you to easily connect your MacBook to various devices using HDMI and USB 3.0 ports. With its 1:3 connection split/duplication capability, you can expand the connectivity options for your laptop. The adapter features HDMI 2.0 and 1.4 outputs, as well as USB-C and USB 3.1 connectors, making it compatible with a wide range of devices from different brands like Apple and Acer. Additionally, the portable design with a coil cord and powered feature make it convenient for use on the go.