Chosen Solution

Hi to all, I recently acquired an old iMac 10,1 (Late 2009). Looking up the serial number in everymac returns that this should be an EMC 2308, this is also the case for some other sites that describe this iMac in general. But then there is one site which returns a little more specific information, and there it is stated that this iMac has EMC 2551. And, indeed, under the footstand, next to the serial number, it says clearly EMC 2551. I have tried to search this but have not been able to find some good information about this ambiguity. What is the difference between EMC 2308 and 2551? Is there any? How come my old iMac is stamped with an EMC that seems to be much newer? Would be very grateful if someone knows more about this and could bring some clarity. Thanks, George

The only thing I can think of is an education special. Apple has on and off produced special school systems like: iMac Intel 21.5" EMC 2496 (Edu) RepairiMac Intel 21.5" EMC 2545 Early 2013 (Edu) Repair