Have a MacBook Pro9.2 A1278 mid 2012, am wondering how to tell what year it was manufactured, the build date on my optics drive is 2014, So it's either built after that or drive was replaced. I bought it from a very reputable refurbursher with warranty. I know a lot of times the serial # will tell you, so I am attaching a pic, and by the way it runs great with Ventura and is super fast.