How to make NVMe SSD run at PCIe x4??

1 Port PCI-e to 4X PCI Slot Expansion Enclosure 4x pcie slot There are XPS 8940 users who have both an NVME SSD in the slot and a second NVME SSD with adapter in the x4 slot Both SSDs work, unless 4x4 super slot The PCI 4 slot expansion box makes it possible to expand your systems PCI slot availability by adding 4 additional slots Very easy to install and connect, the

4x4 slot pg 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