POLY DA75 USB to QD Adapter. Poly DA75 USB to QD Black Adapter TAA. Product type: Interface adapter. Weight: 38 g. Product colour: Black. This adapter is designed for seamless audio connectivity, offering a reliable USB to QD connection. It is compatible with various Poly devices, ensuring efficient communication for your headset. The sleek black design complements any workspace, while its compact size makes it easy to transport. Experience enhanced audio performance with this high-quality interface adapter.