The Poly Savi D400 UC Microsoft Teams DECT dongle, part number 8J8W1AA#ABB, connects a compatible Savi headset to a PC for calls and online meetings. It uses DECT wireless communication and plugs into a computer through USB-A.
The dongle is certified for Microsoft Teams, making it suitable for Teams calling with a supported headset. The retailer lists the Savi 7300, 7400, 8200 and 8400 series as compatible; HP also names the Savi 7310 Office, 8210 UC, 8445 Office and 7320 UC.