Mist Systems AP21

Overview

 * "48BNXB33.SGB" and "2016/03/03" are silkscreened on the back of the Mini PCIe card in the FCC photos.
 * "48RVRB03.0GB" is silkscreened on the board in the FCC photos.

The datasheet seems to claim 802.11ac support at 2.4GHz with proprietary clients saying, "2x2:2 802.11b/g/n/ac up to 400 Mbps data rate. 802.11ac for VHT capable Proprietary clients."

This product supposedly has a Dedicated Third Radio for "2.4 & 5 GHz dual-band WIDS/WIPS, spectrum analysis & location analytics radio" not for clients.

The Real Simultaneous Dual Band (RSDB) feature of the BCM47452 may be used to enable the third radio while limiting 802.11bgn support to 1x1:1.

Links of Interest
Datasheet

Reviews

 * Mist Deployment (Part The First) on The CaNerdIan