Firstly, am I correct in thinking M.2 Sata SSDs are PCI-e flash based storage devices? I wanted to get a Samsung Evo 840 but I only have Sata II 3Gb/s ports so it's not like I could get everything out of the SSD. I recently saw a video of a comparison of a mac pro and a custom PC and the mac pro had PCI-e based flash storage and blew the PC out of the water in copying files, even though the PC had an SSD.