I have an 486@133Mhz on a ISA card. It is a full computer with RAM VGA IDE Serial, Parallel, LAN all on a card. But DO NOT PLUG IT INTO YOUR AMIGA!!!!
These devices might look ISA or PCI cards but they are actually the opposite. They DRIVE the bus. So you're in for some trouble putting it into a slot that is already driven. Basically you should plug these cards into dumb bussboards so you can use other cards the device can drive.