I remember years ago when there was a decent selection of PCIe SSD's that were much more expensive and much faster than standard SATA SSD's. Now that M.2 NVME is out, those PCIe card's seemed to have disappeared. The problem is that I don't have an m.2 port on my MOBO so I looked into an expansion card and found a number that offer anywhere from 1-3 m.2 NVME ports and some with SATA connections as well. Now I've found some PCIe cards that are insanely fast (now called Add-in-card AIC SSD's) with IOP's MUCH higher (5-10x) than m.2 NVME and they are basically the same price per GB. I'm also concerned about getting the real speed from the m.2 expansion cards, if it will really support the m.2 nvme specs. I remember old SATA expansion cards (2 or 4 port) that really lacked in performance compared to on-board SATA and these new cards are about the same price as the old SATA expansion cards ($20-45). Has anyone had experience with these expansion cards or the newer PCIe SSD's? I'm looking at a Plextor https://www.newegg.com/Product/Product.aspx?Item=N82E16820249107 which at $120 for 512GB and the speed it offers, it pretty nice IMO.