The announcement focused on Quantenna's QSR5GU-AX PLUS chipset, which was announced Sept 12. This is the first draft 802.11ax device to support five streams in its 5 GHz radio. Quantenna claims the extra stream "allows up to 50% more speed, compared to a 4x4 MIMO design".
The move makes sense for Quantenna, which needs to beef up its mesh Wi-Fi solution to try to grab marketshare from Qualcomm, which currently dominates the consumer mesh Wi-Fi space.
Plume has had its own successes with carriers, with deals previously announced with Comcast and Canada's Bell. The company also announced similar mesh technology integration deals with both Broadcom and Qualcomm last year.