Belkin F5D8232-4 v2

N1 Vision Wireless Router Product page

"YKM00D-1.6" is silkscreened on the board in the FCC photos.

Post purporting a supported firmware image on the DD-WRT forums

The default SSID pattern may be Belkin_N1_Wireless_XXXXXX or Belkin_N1_XXXXXX (where XXXXXX is the last three octets of the wireless interface MAC [upper case hex characters]).