MDA500 QD Series - Corded Switcher/Mixer for Quick Disconnect (QD) Headsets | Poly, formerly Plantronics & Polycom
Plantronics Quick Disconnect to Jabra Quick Disconnect - Adapter to convert QD's
Plantronics EncorePro 320 QD Quick Disconnect Headset - New
DA Series - Smarter digital adapters for Poly QD headsets | Poly, formerly Plantronics & Polycom
Plantronics H-Series Headset QD to RJ9 Adapter - Hearing and Vision Center
Amazon.com: Headset QD(Quick Disconnect) Connector to USB Adapter Cable with Volume Adjuster, Mute for Speaker and Microphone Separately Compatible with Any Plantronics and VoiceJoy Headset QD Plug : Electronics
Amazon.com: Headset QD (Quick Disconnect),Compatible with Plantronics Headset.QD Cable with Single 3.5mm Plug for Smartphones Mobile Phones,Laptop etc : Electronics