If you want to mirror or extend your display to a second screen, you'll need the right Insignia adapter cable. This one connects USB-A-enabled devices, like Windows or Mac computers or laptops, to monitors or TVs with HDMI connectors. It offers a reliable 30hz signal performance for resolutions of up to 4K, allowing for high-definition displays. | Insignia USB 3.0 to HDMI Adapter - Black