Poly’s DA75 digital adapter keeps call center employees sounding clear at home or in the office with easy USB-A and USB-C connections. 
Effortless USB plug and play installation
Built-in USB-A and USB-C connectors
No inline volume, answer/end, and mute control buttons
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
Downloadable firmware updates and unique serial numbers create consistent management of devices
2 year manufacture warranty