TP-Link TL-WR841N v8.x

Wikidevi Notes
"1110212841-8.0" and "Rev:1.0sp2" is silkscreened on the board in the FCC photos.

Per the manual, the default SSID pattern is TP-LINK_XXXXXX (last three octets of the BSSID, presumably upper case hex letters).

Pictures
TP-Link Images