Quick tech specs
  • Sound card
  • USB
  • HW520D
  • HW540D
  • HW720D
  • stereo
  • for EncorePro HW510D
  • HW530D
  • HW710D
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Know your gear

When you deploy softphones in your customer service center, Plantronics DA USB audio processor delivers a more complete audio experience by providing context for every call. The DA offers exceptional quality and control, helping you gain deeper insights.
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Poly DA90 - sound card
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