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MDA400 QD Series Analog switch for Quick Disconnect (QD) headsets

MDA400 QD Series advanced audio processors combine with compatible Plantronics headsets and Plantronics Manager Pro, software-as-a-service that is sold separately, to let you do both. Get the insights you need to maximize efficiency and deliver an exceptional customer experience.


  • Connects to
    • Traditional desk phones and PC softphones; Plantronics Quick Disconnect (QD) headsets (not included)
    • Contact center managers seeking to improve customer engagement and agent performance on desk phones and softphones by using Plantronics analytics
    • All major desk phones
    • Built for UC applications and softphones from Avaya, Cisco, Skype and others
    • MDA480 QD: EncorePro 500/700 Series, SupraPlus and other Plantronics standard QD headsets MDA490 QD: EncorePro 500/700 Digital Series, SupraPlus Digital
    • Varies by headset
    • MDA480 QD (P/N )
    • MDA490 QD (P/N )
Data Sheet


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MDA400 QD Series Data Sheet

Learn about the features, benefits and technical specifications of the MDA400 QD Series

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