You won't find a z170 motherboard that has 2 M.2 ports that won't disable any sata ports.
The m.2 are shared the chipset pcie lanes with the SATA ports.
You won't find a z170 motherboard that has 2 M.2 ports that won't disable any sata ports.
The m.2 are shared the chipset pcie lanes with the SATA ports.