Those are industriual-PC-boards which work in many environments. They are available with nearly all CPU-variants (yes, even Core-CPUs like i7 QuadCore etc.) and should work in all Amigas with ISA-slots (provided the PSU is fit enough). Sometimes it needs a small modification to the ISA-slot (there is thread on
http://www.a1k.org according this topic).
I had some of those cards and it was very funny to operate a 2 GHz-system in a 8/50 MHz A2000

Unfortunately they are not very cheap.