Belkin F5D7230-4 vA

Overview
"141400520023J REV: 0A1" is silkscreened on the board in the FCC photos. The same board part number is on the Belkin F5D7234-4 v3.
 * "141400520023J REV: 01"" is silkscreened on a production model board.

It would appear (and is being assumed) that the SuperTask! RTOS is used on this device.

Links of Interest

 * On the DD-WRT Forums