sbc slotIf you're looking to go as small as possible, a pcie x16 slot can be added through a m.2 NVMe slot or 40gbps port or oculink. In the resource below on the full and simpler lists there is a columnPICMG 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