Poly DA75 USB Adapter



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DA75 USB Adapter for H-Series Headsets (Poly 218266-01 or HP 786C6AA)

  • Built-in USB-A and USB-C connectors
  • Full backwards compatibility for any Poly QD headset
  • Intelligent headset recognition
  • Support Sold Separately – See Below
  • Same Day Shipping On In Stock Items
  • Latest Date Codes

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Poly DA75 USB Adapter For Use With Quick-Disconnect Headsets – Poly 218266-01 or HP 786C6AA

The Poly DA75 USB adapter part # Poly 218266-01 or HP 786C6AA keeps your call center employees sounding clear at home or in the office with easy USB-A or USB-C connections. Audio is adjusted to each specific headset, offering pro-grade call quality. Durable enough for 50,000 disconnects, and gentle enough to preserve your hearing, the DA75 adapter upgrade any Poly QD headset to a new standard of excellence. Flexible and future-proof, only from Poly.

  • Built-in USB-A and USB-C connectors
  • Full backwards compatibility for any Poly QD headset
  • Intelligent headset recognition
  • Remote firmware and cloud system updates

Poly DA75 USB Adapter Benefits

  • Work hassle-free across new and legacy equipment with USB-A and USB-C connectors right on the cable
  • Answer soft-phone calls from any PC, no matter what kind of USB port you have
  • Get more out of your legacy headset, and your investment, with full backwards compatibility
  • Walk away from your desk with a click: Poly Quick Disconnect technology works with any Poly QD-equipped headset

Poly DA75 USB headset adapter

Poly DA75 Is Making The Hybrid Call Center Work

Smart digital headset adapters that make home/office working a breeze. Want your call center employees sounding crystal-clear from home or office? The Poly DA Series USB-A and USB-C compatible digital adapters adjust audio to each specific Poly headset, offering pro-grade call quality. You’ll even get full access to everything Microsoft Teams has to offer. This level of flexibility and sheer quality could only come from Poly.

Poly DA75 USB Adapter

Flexible & Future Proof

Support hybrid working with a connection to Poly’s new & legacy equipment. Preserve your investment in current and legacy tech with the Poly DA75. Not only does this digital adapter include USB-A and USB-C access right on the cable, it is also backwards compatible with all your new and legacy Poly headsets and accessories.

USB-A & USB-C Connectivity

Peak User Experience

Completely optimized: better audio quality, durability, even user-friendliness. Call clarity isn’t just a dream. Poly DA Series offers intelligent headset recognition that dynamically tunes audio performance to your headset. Stay distraction free with the DA75.

Poly DA75 USB Adapter Features:

  • Upgraded durability
  • USB-A and USB-C on the same cable
  • Intelligent headset recognition
  • Works with any Poly QD adapter for unlimited compatibility
  • SoundGuard Digital to protect users hearing
  • Weight: 30g / 0.06lb
  • Cable Length: 51.2 in
  • POLY
    • SKU: 218266-01
    • UPC: 017229175112
  • HP
    • SKU: 786C6AA
    • UPC: 197029650054
  • Firmware updates available using Poly Lens


Additional information for the Poly DA75 USB Adapter

Launch Date

August 2021


Latest Date Codes


Same Day Shipping On In Stock Items

USB Connection Type


Part #



Poly 218266-01, HP 786C688


Poly 017229175112, HP 197029650054


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