If your computer does not recognize the headset, follow these steps recommended by Microsoft Support Device Manager : Right-click the button and select Device Manager Uninstall Driver
The Plantronics Audio 628 USB headset is a workhorse in modern offices, call centers, and home offices. Known for its stereo sound quality, noise-canceling microphone, and all-day comfort, it connects via a standard USB-A plug. However, like any USB audio device, it relies on the correct driver to function properly. Without the right driver, you may experience distorted sound, a non-functional microphone, or the dreaded "USB device not recognized" error. plantronics audio 628 usb driver download
Last updated: January 2026. Drivers and software versions are subject to change by Poly (now part of HP). If your computer does not recognize the headset,