PCIe x4 SSD and PCIe x4 slot

B550M Steel Legend m 2 pcie 4 0 in 3 0 slot I am not familiar with MSI boards, but I did read over the specifications of that motherboard The nvme is in the M2_1 slot? That would be the m2 slot mainboard MOS; Supports DDR4 4733+ ; 1 PCIe x16, 1 PCIe x16, 1 PCIe x1, 1 Key E for WiFi; Graphics Output Options: HDMI, DisplayPort; AMD

m2 slot screw Depends on the device you're using in it It'll surely be a bottleneck if you're using a PCIe or card in a PCIe slot Simply because