Apple 2gs boards, what are they?

Picked up some Apple IIgs boards yesterday and I need some help with them. First is a Q-RAM GS memory board. This looks like it has 4 meg on it and the only thing here I'd like to know is what the 2 switches are for and what sizes of simms will it support. Any doc would be helpful. There others I'm not sure what they are. The first is labeled as "Quickie Controller" "Vitesse Inc." "P/N 121489" There is a cable that goes to one of those round plugs like the the serial and printer plugs on the IIgs. What's the official name of those connectors? The other is from Apple but I don't know what it is. It has a cable off the back to a 25 pin connector. On the board is "Apple Computer 820-0153-A" Over one set of chips it says something about "sandwich II". I don't know any of the chips on it (never was great at IDing more than a handful of chips). Could post pics if it would help. Anyone know anything on any of these boards? Thanks. ----- "What is, is what?" "When the mind is free of any thought or judgement, then and only then can we know things as they are." David Williams - Computer Packrat dlw(a)trailingedge.com http://www.trailingedge.com