Question about Computer numbers.....

I am trying to find a computer for my 1994 nissan maxima, and I had a question about the numbers on it. The one I have is A18 B60 ED2 4211, and the one I found is A18 B60 ED2 3X18. All of the numbers match but the last four. Do they have to, or is that just a specific ID number for that computer?

i have no idea about a 94 model maxima, but if the ecu you have is from the same year model, and transmission i dont see a problem

The numbers need to match.The one you might buy may be for a vehicle with different options./eg.manual trans/ac/vvt/turbo etc.
if you buy and it's not compatable you may have a problem returning the part.