Gemtek WL-350F

Overview
"GEMTEK", "WL-350", "ENG0003400", and "ISL37400M REV C" is silkscreened on the board in the FCC photos.

This is the wireless module for the Linksys WPG11 (Gemtek FCC ID: MXF-PS910815, Linksys FCC ID: Q87-WM54G-I).

Links of Interest
On djb's PRISM models page (archived here)