Upgrade your audio setup with this brand-new Poly (Plantronics) DA85 Digital USB Adapter. Designed to seamlessly connect Quick Disconnect (QD) call center and office headsets to your PC or Mac via USB-A or USB-C, this adapter delivers crystal-clear sound quality for calls, virtual meetings, and remote work. It features intuitive inline controls for easy volume adjustments, microphone muting, and call handling right at your fingertips. Complete in its original box with all factory documentation, it is fully compatible with major platforms like Microsoft Teams, Zoom, and Poly software.