High-Tek Harness HTKWLAN02

"219WLAN020N1" is silkscreened on the board in the FCC photos.

Per the FCC manual...
 * Output Power: +16dBm (typically)
 * Receive Sensitivity: -83dBm (typically)

Likely 00:0D:1D (High-Tek Harness) OUI (in screenshots in the FCC manual)