Can I Use a PCIe NVMe SSD in a PCIe Motherboard Slot?

2 PCIe SSD, Buy GLOTRENDS PCIe NVMe slot to keep the distance very short I've had very good results with

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

nvme gen 4 in gen 3 slot PCIe devices are forward and backward compatible, therefore a PCIe SSD will still work on a PCIe motherboard and conversely a PCIe

nvme in pcie slot Can I Use a PCIe NVMe SSD in a PCIe Motherboard Slot? Section Link A PCIe NVMe SSD will work in a PCIe motherboard slot at PCIe