This HP USB Graphics Adapter allows you to easily connect an additional monitor to your computer via a USB port, providing efficient display expansion. As this item is used, it shows minor signs of wear from normal operation but remains fully functional and ready to extend your workspace. It features DisplayLink certification for reliable performance and convenient plug-and-play capability for your desktop or laptop setup. Features: - Model Number: NL571AA - Regulatory Model: AN2464 - Assembly Number: 518591-010 - DisplayLink Certified - Interface: USB to VGA. This handy little gadget is waiting to turn your single-screen blues into a multi-monitor masterpiece! Please note that if this advertisement is still live, the product is available and ready to find a new home.