Hi, I'm in the market for a second 500GB SSD. I thought my 500GB Samsung 850 Pro would do the job when I bought my rig two years ago, but after falling in love with Oculus and VR I have nowhere near enough HDD space for my pancake games and my VR games. My mobo is an MSI Z170A Gaming M5 with the following slots available: 6 x SATA 6Gb/s ports (4 ports reserved for SATA Express port) 2 x M.2 Key M Socket support type 2280/2260/2242 storage devices in both PCIE Gen3 x4 & SATA mode Supports PCIe 3.0 x4 and SATA 6Gb/s standards, 4.2cm/ 6cm/ 8cm length M.2 SSD cards Supports PCIe 3.0 x4 NVMe Mini-SAS SSD with Turbo U.2 Host Card 2 x SATAe ports (PCIe 3.0 x2) I believe I have three worthy options but am not very knowledgeable on the topic. Can you help advise? Simply buy a second 500GB 850 Pro. I noticed there is a newer 860 Pro for the exactly the same price. Is a newer model at the same price a no-brainer? Or will I cause compatibility/mobo/data-transfer issues by running two separate models? Also in the same price range, I could get a 960 EVO NVMe M.2 SSD. I'm not too familiar with it apart from "it should be faster". Again, same price range and even newer and faster, does that imply no-brainer? Also is my mobo fully compatible with it? Assuming my Mobo has the ports to support any of those options, what would you advise? Thanks!