A system for delivering an input fuel stream to a fuel cell stack to generate electrical current and to discharge an unused fuel stream is provided. The electronic still camera has the PC card which is inserted into or drawn out from a camera body, which has the same shape as the PC card. The second set of conductive traces, in combination with the conductive traces of the second transparent element, provide a capacitance signal representing the amount of force applied to the display element. The D-shaft is pivotable between first and second positions corresponding to the D-shaft latching and unlatching the latch assembly, respectively.