The WGF-12 accepts up to twelve pre-terminated fiber optic cables with attached connectors. It is designed to provide a means of bringing fiber optic cables into a shielded enclosure while maintaining the enclosure’s radio frequency isolation integrity. The filter has a removable center plug, which is surrounded by six waveguide bores. When the center plug is removed, connectorized fiber opticcables can be inserted into the peripheral cable sized slots.