Belkin F5D7234-4 v5

"P/N: 141700520016J R01" is silkscreened on the board.

Per the below boot log, BCM5355 is presumed to be quite similar (if not identical) to BCM5356.

The default SSID is Belkin_XXXXXX where XXXXXX is the last 3 octets of the WLAN MAC address (w/ uppercase letters).

Additional external links

 * On the DD-WRT Wiki's Known incompatible devices table

Pinout
< to BCM5355A1 J102 (GND) (RxD) (TxD) [3.3]