I've been doing research on different forums to get some consensus on newer drives including the new Optane memory and I'm finding surprisingly little infor. Seems to be a couple folks who say avoid NVME for what seems like reasons related to noise and yet the new Windows X/Jplay music server uses one I believe. Even more interesting was mention of an adapter to plug SATA into the M.2 slot, this way you can still have external linear power but but have better latency/proximity(?) and bypass SATA controller.
Anyone else try these options out?