For a list of all currently documented Ralink chipsets with specifications, see Ralink.
"P\N:0G9SLV0202", "Rev.B", and "Made in Taiwan" is silkscreened on the main board in the FCC photos. "P\N:0G9SLV0201-1", "Rev.A", and "Made in Taiwan" is silkscreened on the LED module.
This camera is identical to the ZyXEL IPC-2605N, with Compro as the presumed OEM.
Probable OUI of 00:18:FB