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Poly MDA100 QD Switch

(1 customer review)


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MDA100 QD Headset Switch With Dual Connectivity:

  • One headset for desk phone & softphone / VoIP
  • Easily transition into Unified Communications
  • Mute button, 10 foot cord, and no-slip base
  • Quick-Disconnect lets you unplug and walk away
  • Same Day Shipping On In Stock Items
  • Warranty 2-Years
  • 30-Day Returns
  • Latest Date Codes

Poly MDA100 QD Switch for Headsets

Simple to use, easy to manage. The Poly (formerly Plantronics) MDA100 QD Switch makes your transition to softphones and unified communications seamless. These intuitive switches helps manage audio from different sources, without changing headsets.

Poly MDA100 QD Headset Switch

Intelligently Simple

  • One headset for desk phone and PC calls or applications
  • Manage your audio from one simple-to-use device
  • Easy-to-use buttons
  • Visually see your microphone mute button status
  • Quick-Disconnect Cord allows you to walk away from your desk
  • 10-foot cord allows users to move freely while on calls

Ready for the Future

  • 6-position slide switch ensures long term compatibility with desk phone infrastructure
  • Works with any Poly H-Series headset
  • Compatible with PCs, Macs and all major deskphones and softphones supported by Poly Lens

Poly MDA100 QD Switch Specifications

Connects To
  • PCs
  • Desk phones
  • Poly H-Series Headsets
Ideal For
  • Customer service centers who are transitioning from desk phones to softphones and unified communications (UC)
  • Users are required to manage audio from two sources with a single headset
MDA100 QD Switch Compatibility
  • EncorePro 300 Series
    • EP310 QD
    • EP320 QD
  • EncorePro 500 Series
    • HW510
    • HW520
    • HW530
    • HW540
  • EncorePro 700 Series
    • HW710
    • HW720
Softphone Compatibility
  • Built for UC applications and softphones from
    • Microsoft
    • Avaya
    • Cisco
    • Others
Audio Performance
  • Dependent on headset
  • Model: MDA700 QD
  • 2 Year Warranty
  • SKU # 205255-01
  • UPC: 017229152366

What comes in the box:

  • MDA100 QD Switch
  • 10 ft coil QD cable (26716-01)
  • RJ9 to desk phone cable (207966-01)
  • USB to Micro-USB PC Cable (207967-01)

Poly MDA100 QD Switch Compatibility Settings:

Compatibility Slide Switch: The bottom of the MDA100 QD has a slide switch with letters A-F.   Research your phone’s natural Direct Connect Cable for correct compatibility setting.

A = U10
B = A-10
C = U10P
E = U10P-S

Additional information






Same Day Shipping On In Stock Items


30-Day Returns







Cable Length

10 ft

1 review for Poly MDA100 QD Switch

  1. Bryan

    Purchasing the switch from Headsets direct was very easy. I had some questions about compatibility and called in they were very helpful. I have them the model number of the Cisco phone that I use and they not only confirmed the product was compatible they told me the settings that needed to be checked so I could easily use it right away

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