Ativa AWGR54

Ativa Networking devices support page Manual

OEM Arcadyan WG4005G

According to the FCC test report, the same hardware is used by the following devices..
 * Belkin F5D7230-4
 * USRobotics USR5463, USR805463, USR015463
 * SMC SMCWBR14-G2

"141400520017J", "REV: 01" may be silkscreened on the board.

On the DD-WRT forums (images)