ZyXEL GS-108B

"37NB-G208E0+210 REV:1.0" (.. as well as a date code of 1108) is silkscreened on the board of one particular production moddel GS-108B.
 * This would seem to be a Netronix board P/N.. probably that of the G208E. No revision information seems to be on the label..