1 additional PCI-Express x1 slot is needed

NVMe PCIe® x4 & PCIe® x2 • 1x PCIe ® Slot 2 2280 • NVMe PCIe x4 and SATA Mode 12 Smart Fan 5 + FAN STOP • 3 Fan

Re: pcie x4 card in pcie x1 slot You can put smaller cards in a larger slot, but not the other way around So a 1x will fit in a 16x or 8x

pciex1 slot If you have the option of multiple slots where at least one supports PCIe, it's worth considering your secondary slot for an SSD upgrade When combined

pciex1_1 slot Re: pcie x4 card in pcie x1 slot You can put smaller cards in a larger slot, but not the other way around So a 1x will fit in a 16x or 8x