AIN Communications AWT2400g

Overview
"AIN COMM" and "AIN Comm" (w/ the serial number for the unit written in marker, 6 in this instance) is silkscreened on the board in the FCC photos.

This device is assumed to use MAX2825.

AIN Comm.'s website was at http://www.aincomm.com.tw.

The OUI is likely 00:0D:2F (AIN Comm.)