Answer to "replace SSD 15" in retina MBP with Samsung 840 Pro Series MZ-7PD512"This thread is a yar old. I have a mid 2012 Retina Macbook with 256 Gb and I want more. Options: 1. Adapter mSata +mSATA SSD from eBay, like dan2h sugested. 2. The original mac Interface is custom, or the m.2 new SSD will fit perfectly as an upgrade?