10 x Samsung 980 PRO SSDs (PCIe 4.0) 2 x ASUS Hyper M.2 X16 PCIe 4.0 X4 Expansion Card When doing research, I was careful to buy only kit that can achieve ful

10 x Samsung 980 PRO SSDs (PCIe 4.0) 2 x ASUS Hyper M.2 X16 PCIe 4.0 X4 Expansion Card When doing research, I was careful to buy only kit that can achieve full PCIe 4.0 speed and not some old PCIe 3.0 stuff that's "compatible with PCIe 4". This applies both to SSDs and expansion cards... Edit: It's worth adding that your CPU(s)/mobo must have enough PCIe lanes when trying to get max throughput. 10 SSDs would need 40 PCIe lanes dedicated to them (many consumer CPUs/chipsets have 36 or 44 and some lanes are used for other stuff! The new AMD ThreadRipper PRO WX has 128 :-)