Which would make it the very first one produced, or perhaps the one used during the keynote for the Mac Pro reveal on March 3rd 2009!?
I am thinks about the time as well. 4,1 was introduced on March 2009. And week 9 is March 2009
[doublepost=1539601964][/doublepost]So, this is a valid but not real serial number. Isn’t it?