sbc slotI don't know if RAID1 is useful on M.2 SSDs, but if it is, having two ports (if that exists) would be better. If not, I'll get by with 1 slot. I'm also considering low-power x86 devices, maybe aPICMG 1.3 Full-Size SBC Backplanes are the expansion interface for Slot SBC and provide with flexibility, performance and shorten MTTR. The SBC backplane with space-saving desn