TP-LINK TL-WR802N v4.x

Overview
"2050500885" and "1652" is silkscreened on the board.

Links of Interest

 * TP-LINK TL-WR802N on OpenWrt wiki
 * TP-LINK TL-WR802N v4 on RadioAficion
 * Antenna: 2x internal PIFA (2.85dBi), MIMO CDD