Any way I can attach a card thats PCIE X8 onto a micro form factor

Number of lines: 8-Lane, compatible with x8 x16 PCIe slots Output: • 2x NGFF 75-pin M-key slot to install an NVMe

You can put anything smaller than the slot in just fine It's the PCI-e bracket screw that really holds things into place I'd get the newest

pcie 20 x1 slot The PCIe Gen 3 Switch allows users to take advantage of a single PCIe x8 slot, through the use of QIP2X-PCIE8XG302, and transform their PCIe

pcie slot width Should work fine, it's the same as putting a 16x card in to a slot that's only wired for 8x or 4x, you don't get the full bandwidth but it will