Quick (dumb) question-- we are picking up some used PICs, and just want to verify: PE- M5/M10 card, has port ejector, will work/screw down on M20/M40 FPC P- M20/M40 card, will work/screw down on M20/M40 FPC PB- M40e/M160 -- will this work in an M20/M40? Different backplane? bill