Hi, All, Another recent find, a Tallgrass Technologies "Shortcut", 80286 upgrade for 8-bit PCs. I've found several reviews online but no docs and no software (to enable the onboard 16K cache). One thing that concerns me is that on this unit, the 24-pin socket at U18 is empty. It might be nothing. This one does not have the memory daughtercard on J1, so perhaps they are related. If anyone has docs or has one and could tell me if their U18 is empty (and if not, what goes there), that would be great. Thanks! -ethan