What Z170 motherboards support two M.2 PCIe Gen3 x4 in RAID 0, where both M.2's operate at full x4 speed, as a Windows 10 boot drive?
MSI Z170A Gaming M7 motherboard has two M.2 slots, but when you insert two M.2 PCIe 3.0 cards, one of them becomes standard SATA.
GIGABYTE Z170X Gaming 7 motherboard supports dual PCIe Gen3 x4 M.2 with two PCIe Gen3 x4 M.2 connectors onboard. It was somewhat complex to setup two M.2 in RAID 0 configuration, but Window 10 REFUSED to install into this RAID. I had to delete the RAID and then Windows 10 would install into one of the M.2 as normal.
MSI Z170A Gaming M7 motherboard has two M.2 slots, but when you insert two M.2 PCIe 3.0 cards, one of them becomes standard SATA.
GIGABYTE Z170X Gaming 7 motherboard supports dual PCIe Gen3 x4 M.2 with two PCIe Gen3 x4 M.2 connectors onboard. It was somewhat complex to setup two M.2 in RAID 0 configuration, but Window 10 REFUSED to install into this RAID. I had to delete the RAID and then Windows 10 would install into one of the M.2 as normal.