Can you use an NVMe SSD on an older motherboard via a PCI

m 2 nvme slot on motherboard   Dan m2 sata vs nvme slot

Only if its a boot device or your intent is software raid, any most pcie adapter regardless of bios support will support an nvme data drive once

2 supports both SATA and PCIe, an module may only be inserted in either one of the two interfaces, so check your motherboard documentation As an example board: asus sabertooth x99 had one nvme slot, 10 sata ports, 2 sata express ports, and either 28 or 40 lanes

slot machine sites uk The N7 features a seamless metal cover and a heat spreader for the topmost slot An integrated heat spreader is included for the topmost NVMe drive  Install the motherboard standoff screw based on the length of your SSD drive Most drives these days, including mine, use the 2280 form factor