Plantronics Compatible USB Adapter Cable With Volume Control And Mute Functionality (Connects With Any Wired Plantronics Headset with a Quick Disconnect) Connects Into A PC, Laptop Or Softphone.: Amazon.co.uk: Computers & Accessories
DA80 USB Audio Processor USB QD(201852-01/02 ) Connector to USB Adapter w/ Volume Adjuster, Mute for Microphone & Speaker Compatible with Planstronics QD Cord HW251 HW510/520 310 QD Headset: Amazon.co.uk: Computers &
Plantronics DA90 - Cable QD / USB | Onedirect.co.uk
POLY DA70 USB to QD Headset Adapter | 201851-01 | Plantronics | Brand New | eBay
Plantronics USB Encore Pro HW520D Binaural Headset with DA90 USB-A Adapter | 203192-01 | 201853-02 | From £84.00 - PMC Telecom
Call Center Headset Quick Disconnect QD Cable to USB Plug Adapter Compatible with Plantronics Headset QD Connector Plug to Any Computer Laptop VOIP Softphone : Amazon.co.uk