They wont make any more of these.
The 182-pin edge connectors are not made anymore and to have more made you have to place a minimum order of 1000 at about £1.50 each.
With the only company that still has the tooling to make them being ADAM-Tech.
The SX32Pro is a bit overkill. People would rather have (IMHO) a very very cheap addon which just adds FAST RAM so that more WHDload slaves work.
I created a CD32 expansion prototype last year. It had 4-Meg RAM with RGB SCART out. Cheap cheerful offering everything that I thought CD32 owners wanted.
But I could only get 3 samples from ADAM-Tech without having to order 1000, there wasnt enough of a market to make 1000 and so I dropped the idea.
I later tried to create a cheap PASSIVE adapter that converted from the CD32 edge connector to the A1200 trapdoor connector. So that you could use A1200 accelerators with the CD32. This used 2 connectors and was very cheap to make but the NRE meant I had to sell 200 to break even.
If someone manages to find a source of these MCA connectors in lower volumes I would definately be interested!