May i ask what lead you to RAID 10?
RAID 10 as mentioned is not available with your M.2 PCIe Drives, even if it was its really not for home use, its meant for high performance database use on spinning media storage drives. For you, 1 minor failure means smoking your Windows install across 4 drives. Really bad.
Anyway gasaraki makes a good point about PCIe lanes. You are limited. The board has 3 M.2 slots and if you populate all 3 slots than PCIE_5 (the bottom PCIe slot on the board) does not work. PCIe 2 and 4 are attached to the CPU, if you use those slots for a PCIE M.2 card (the Xpander card included in the box) they will pull lanes away from the GPU (which should always be in slot 1). PCIe Slot 3 is attached to the PCH but its only X1. You could put a PCIe M.2 Adapter holding 2 drives into Slot 5, but then both drives will be limited to X2 (if it even works), and then you can't use M.2 slot 3. And forget about the U.2 port if you use that then M.2 slot 2 is disabled.
So the TL DR version of what i just wrote, for the best possible performance speed wise you are limited to 3 M.2 drives, in the slots on the board, and 1 GPU. And you can use 4 SATA ports for regular SATA drives.