SENNHEISER UUSB1 USB Adapter - Model 5374 615104053748 | eBay
Amazon.com: Sennheiser USB-ED CC 01 MS Cable Adapter for CIRCLE and CENTURY ( CIRCLE SC 230, SC 260 & CENTURY SC 630, SC 660), Skype for Business Certified Headset Solution : Electronics
Sennheiser - HeadsetExperts.com
Sennheiser DC 2 DC Power Adapter | Location Sound
Sennheiser USB-ED 01 (506035) – USB to ED Adapter – New - OregonRecycles.com
Sennheiser BTD 800 USB ML Dongle
EPOS Sennheiser USB to ED Adapter Cable - 1000822 - -