This display adapter enables you to output high-definition HDMI 4K video from a device equipped with a USB-A port so that you can expand your screen size any time This 2-port adapter connects a HDMI 4K computer monitor to a USB-A laptop or tablet to display your presentation with ease This plug-and-play adapter is the perfect accessory for technology users on the go This adapter lets you connect and disconnect without having to power down your device, saving you time and effort