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MDA500 QD Series Corded Switcher/Mixer for Quick Disconnect (QD) Headsets

MDA500 QD Series of audio processors seamlessly integrate mixed-call environments for an improved customer experience, feature easy-to-use call controls and improves Customer Service Representatives (CSRs) training.


  • Desk phone compatibility
    • All major desk phones
    • Built for UC applications and softphones from Microsoft, Cisco, Avaya and others
    • EncorePro 500/700 Series 6 pin digital tops and EncorePro 500/700 4 pin standard tops
    • Advanced noise and echo cancellation ensures a clear and natural sound. Please see your respective headset product page on for more details.
    • SoundGuard® DIGITAL protects against sound levels above 118dBA; G616 Anti-startle (during calls) detects and eliminates any large sudden increase in signal level; Time-Weighted Average prevents average daily noise exposure from exceeding 85 dBA (enabled by Plantronics Hub).
    • H: 32.4mm x W: 82.8mm x D: 117.5mm
    • .31 lbs/140 g
    • Call/answer end, mute, volume
    • Call recording (requires 3rd party PC application and Plantronics Hub), Agent greeting, Voice notes, Streaming audio
    • Global 2 year warranty
    • Plantronics Hub desktop version is available for Windows/Mac, Plantronics Manager Pro suites: Asset Management & Adoption, Call Quality & Analytics, Health & Safety
    • MDA526 QD, USB-C (P/N )
    • MDA526 QD, USB-A (P/N )
    • MDA524 QD, USB-C (P/N )
    • MDA524 QD, USB-A (P/N )
Data Sheet


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MDA500 QD Series Data Sheet

Learn about the features, benefits and technical specifications of the MDA500 QD Series

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Acoustic Protection

MDA500 QD Series features Soundguard Digital to protect users’ hearing and improve listening comfort while maintaining natural sounding speech

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