Hi all, please see my request here Product request: Stackable 2x/4x M.2 E key extension board for Rock5B SBC for a stackable 2x M.2 bifurcation board. Please share your thoughts there. (Also for a stackable 4x M.2 PCIe switch board.)
Also, please have a look at this discussion of USB-C power delivery voltage & watt consumption: Rock5B SBC: Voltage on the USB-C Power Delivery input. Rock5B+peripherals watts consumption