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

Can I Use a PCIe NVMe SSD in a PCIe Motherboard Slot? m 2 ssd slot 2 SSDs These are usually dual-keyed with notches for both the B and M keys SATA only slots will usually use the B key maxx 77 slot PCI_E1 slot will be Gen5x8 when installing SSD in the M2_2 slot so Avoid M2_2 as it shares with the Main PCI-E Slot M2 M2_2

mb88 slot PCI_E1 slot will be Gen5x8 when installing SSD in the M2_2 slot so Avoid M2_2 as it shares with the Main PCI-E Slot M2 M2_2