So I've just come into possession of a Mac SE/30 :b&w: Having a thing for the old compact Macs, and this being the best of the bunch, I'd like to try and get it all clean and beef it up a bit (ideally, I'd like to run Linux/m68k on it, just for fun.) However, I'm slightly confused by this whole PDS thing. It looks, from Wikipedia, like the PDS slot exists in a number of mostly mutually-incompatible versions? One reference I looked at suggests that the SE/30 and IIsi share a PDS version, but another section implies that a later LC version is backwards-compatible with an earlier version, so there is some degree of cross-compatiblity? I'm confused. Which kind(s) of PDS cards will work with my SE/30 - and specifically, which Ethernet cards?