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USB to QD Headset Adapter, with Inline Controls, USB-A & USB-C

Price: $109.95$88.00
You save: $21.95 (20%)
Who we are logo, BTP representative with headsets

Every order includes unlimited lifetime support from our Headset Helpdesk, saving you time and money.

Poly’s DA85 digital adapter keeps call center employees sounding clear at home or in the office with easy USB-A or USB-C connections. 

  • Effortless USB plug and play installation
  • Built-in USB-A and USB-C connectors
  • At-your-fingertips interface allows you to bypass on-screen call control menus
  • Eliminate button-pushing mistakes with recessed buttons that are not accidently activated
  • Affordably joins enterprise-class headsets with softphones
  • Professional grade USB adapter for commercial use
  • Compact size takes up minimal desk space
  • Detects when the headset is disconnected and automatically activates screen locking for security compliance, reports on call events, and more!
  • Get incredible call quality on any Poly headset via intelligent headset recognition that adjusts audio performance to the specific headset
  • Quick Disconnect (QD) feature for walkaway convenience
  • Compatible with Poly standard 4 Pin Quick Disconnect headsets (sold separately)
  • Superior noise and echo cancellation
  • Poly Soundguard Digital featuring advanced acoustic limiting, including daily noise exposure, G616, and anti-startle functionality
  • Cable measures 4 feet 3 inches
  • Downloadable firmware updates and unique serial numbers create consistent management of devices
  • Replaced DA80 Adapter 06/2022
  • 2 year manufacture warranty
    BTP Model: PL-DA85
    MFR Part: 218267-01

    Additional information

    Weight 0.25 lbs
    Dimensions 5.50 × 4.00 × 2.00 in


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    DA Series User Guide

    DA Series QSG

    DA Series Datasheet

    Our Unmatched, Value-added Service Saves You Time, Money and Hassles:

    • Experienced consultants help you choose exactly the products you need, preventing unnecessary purchases
    • Free user setup help and training
    • 100% satisfaction guaranteed
    • Our team is committed to answering every call live during business hours
    • Same-day response to emails
    • Same-day shipping
    • Full warranty facilitated by BTP


    For customer service, sales inquiries, and technical support, contact us Monday“Friday, 8-5 Pacific Time. (After-hours messages and emails are promptly returned the following business day.)

    Call: 800-457-4287 or 425-649-9262

    Email: info@btpi.com

    Special order, 1-2 weeks.

    Sometimes this item is not in stock, due to low demand. In this case, expect a phone call or email from BTP Customer Service letting you know the estimated ship date.

    If your order includes other products that are in stock, we will give you the option of waiting until all items are in stock to receive your order, or you may request a partial shipment of in stock item(s) with the special order item(s) to follow when available.

    BTP does everything possible to eliminate delays and unnecessary expense associated with returns. At least two members of the BTP team will review your order for accuracy. If we have any questions or concerns about your order, such as two incompatible products, we will contact you right away.


    “Thank you very much for your attention. It’s a pleasure working with and being a client of your company. Excellent quality standards in customer service you have there. It’sRead more

    Luis V. (San Diego, CA)