TP-Link TL-WR940N v2.x

"2050500297 Rev:1.0" is silkscreened on the board in the FCC photos.
 * The device is presumed to use AR9341 (though this is not confirmed)..

The default SSID format is likely TP-LINK_XXXXXX.

Presumed F8:1A:67 OUI from the FCC EUT's MAC label..

Pictures
TP-Link Images