Belkin F5D7230-4 v4

Overview
"4900RZ00B" is silkscreened on the board in the FCC photos and the below board image from the DD-WRT forums.

F5D7230-4 series on SeattleWireless
 * On reboot, network with SSID 'marvell-ap32' can be seen - this is assumed to instead be Marvell-AP32 based on WiGLE data, which is also used by other routers based on the Marvell AP-32 reference design
 * Default SSID: belkin54g

Links of Interest

 * Board image on the DD-WRT forums
 * Some specs mentioned on the DD-WRT forums (which is all visible in the board image below)

Pictures
ver 4000tt (from wimpi on the DD-WRT forums)