TRENDnet TEW-812DRU v2

Overview
"WRT-C81B Rev:UC" and a date code of 1328 (July 2013)
 * is silkscreened on the board in the FCC photos.

This FCC ID would seem to cover both the TEW-812DRU v2
 * and the TRENDnet TEW-815DAP.

Reviews

 * TRENDnet TEW-812DRU v2 on SmallNetBuilder
 * Per SNB, this device has 8MB of Flash.

Third party firmware related

 * Announcing DD-WRT availability on TRENDnet's PR