Asrock b250M-HDV

Mother Board Info: https://www.asrock.com/MB/Intel/B250M-HDV/index.us.asp#Memory Mother Board Manuel: https://download.asrock.com/Manual/B250M-HDV.pdf My PC: CPU i7-7700 GTX 1080 (Installed on the PCIE 3.0 x16 slot) Question: I plan to add a M.2 PCI Express storage since the M2 Ultra module...