Amazon.com: daily headset USB Adapter Cable Compatible Plantronics QD (Quick Disconnect) to USB Plug, Speaker Volume & Mic Mute Control Connects Headset to PC, Laptop, Soft Phone and More : Electronics
Plantronics QD cable to 2x 3.5mm jack plug, (Headphone + Microphone)
Plantronics QD to 3.5MM Connector Cord MO300 for iphones, Blackberry other cell phones too 38541-02
Plantronics QD to 2.5 mm Headset Cord for Cisco SPA IP Phones (64279-02)
Plantronics QD-2.5mm Alcatel
Amazon.com: VoiceJoy Call Center Headset Quick Disconnect QD Cable to USB Plug Adapter for Plantronics QD Connector to Any Computer Laptop : Electronics
Poly 70765-01 or 2.5mm Direct Connect Cable for QD Headsets - Headsets Direct