Hi, I have a Late 2013 27" iMac without Fusion drive What I want to do is open up my iMac (ACMT here ) and put a flash drive inside the SSD slot on the Logic Board. The question is, will a Retina MBP flash drive fit fine? if not, is there a place to purchase such drive? I tore apart a few of these iMacs but still haven't figured out if it's possible or not. Thanks!!