Wow, sounds like the SE/30 has even more in common with a IIx than we thought! Makes sense though. As I recall, the nomenclature of the day (suffix the model name with an x if the design features the snazzy new 68030) would have had it called the SEx if that didn’t spell what it does. Architecturally, are there any big differences other than form factor (with its concomitant forced reduction in the number of slots) at all? I can’t remember how similar the SE/30 PDS is to a NuBus slot. Wasn’t there some special bracket that could convert between the two types? Mainly used in the IIsi, IIRC.