Those are both different versions of my "MacCon Topper" adapters. They both need a MacCon with PDS passthrough to be modified with a right angle connector so they can sit on top of it.
The bottom one is the very first adapter I built. The second set of options labeled "Daystar" will route all signals the way they are on the Daystar IIsi adapter, the "Diimo" option basically routes everything the way it is on the Diimo SE/30 adapter. The two options basically just were there to make development and testing easier.
There's no point to change any settings on that one, both options will basically work just the same except that the Daystar configuration was having problems with certain cards added on the top PDS passthrough while the Diimo option was fine with them. That's also the reason the Diimo setup was chosen to be shipped on all those cards.
It supports the IIci Diimo, P33/P34 PowerCache and Turbo040.
The top one is a newer version that adds support for the Carrera. It's an earlier version that does not automatically detect when a Carrera is used so you have to tell it with the "Carrera" jumper. Jumper in = Carrera has to be installed, Jumper out = either IIci Diimo, PowerCache or Turbo040 have to be installed.
None of them supports the Sonnet 040 accelerator.