Plantronics DA90 USB Digital Audio Processor


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Plantronics DA90 Corded USB Digital Adapter:

The Plantronics DA90 Corded USB Digital Adapter has been discontinued.

It is replaced by the MDA526 Digital Audio Processor. 

Updated 9/12/2022

  • Clearer conversations with Superior Digital Audio Quality
  • Only compatible with HW Digital Series headsets*
  • Plantronics 6-pin quick disconnect
  • Inline mute, speaker, and call controls
  • Call answer/end with compatible VoIP software
  • Enhanced noise-canceling and echo management
  • Stereo audio support
  • Allows inventory management with Manager Pro


Tech Tip: This product uses 6-pin quick disconnect and is not compatible with 4-pin headsets and training cables.


*Compatible with: HW510D, HW520D, HW530D, HW540D, HW710D, HW720D

  • Discontinued
  • Warranty 2-Years
  • Latest Date Codes

Plantronics DA90 USB Digital Adapter Benefits:

The Plantronics DA90 is the intelligent USB audio processor for digital headsets with high-quality audio, optional support for headset inventory management, and one-touch call and volume control. The DA90 also helps you meet OSHA and Noise at Work regulations

Plantronics DA90 USB Digital Headset Adapter Features:

Turn every call into a smarter customer interaction with the Plantronics DA90 USB Digital audio processors.  Lightweight and simple to use, the DA90 audio processor is purpose-built with cutting edge design, 6pin Quick Disconnect, enhanced noise cancellation, and premium audio; they also help you meet OSHA and Noise at Work regulations.

When combined with Plantronics Manager Pro, an additional service, intelligence in the DA90 gives you more information about the performance of your customer service center. The DA90 goes one step further with optional support for headset inventory management. The DA90 also features fingertip call control. Start having smarter conversations with the Plantronics DA90 and Plantronics digital series headsets.

TECH TIP: Cord length is 50 inches

  • Modern and sophisticated styling that conveys quality, power, and confidence
  • Easy, at-your-fingertips interface that enables customer service representatives to bypass onscreen menus and control call functions for better focus on callers
  • Reports digital serial number of DA90 audio processor and connected headset to streamline inventory management (Plantronics Manager Pro required)
  • Superior noise and echo cancellation for richer, clearer conversations
  • Advanced automatic gain control with transmit noise suppression keeps the focus on the conversation and not the background noise
  • Acoustic audio protection helps meet OSHA and Noise at Work regulations
  • 6-pin Quick Disconnect (QD) feature provides walkaway convenience and compatibility with Plantronics QD-equipped headsets
  • Downloadable firmware updates ensure consistent performance with our headset portfolio and compatibility with latest softphone versions
  • Compatibility to remotely monitor, manage and maintain audio devices company-wide with Plantronics Manger Pro, an additional service
  • Backed by industry-leading Plantronics global service and support and a full two-year limited warranty
  • SKU # 201853-01
  • UPC: 017229146150

Additional information for the Plantronics DA90 USB Digital Audio Processor




Computer USB-A

Part #








End-Of-Life Date

Sept 2022

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