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

m 2 nvme slot on motherboard   Dan m2 nvme slot

2 standard contains variants with up to four PCIe lanes, one SATA 6 Gbs and or one USB port So it is possible to connect PCIe as well as SATA SSDs

ZEBRONICS H61-NVMe Micro-ATX Motherboard for LGA 1155 Socket, Supports Intel 2nd & 3rd Generation Processors, M 2 Slot, Audio, DDR3 1600 MHz, Ports (RJ45 Experience lightning-fast data access with the world's first dual 2280 SSD slots on a motherboard With backward compatibility and active

pasti slot Reletech P400 Pro Q 1TB NVMe PCIe 2280 Internal SSD Maximum Performance Solid State Drive RW 50001900 MBs Gaming PCI-E Gen 4X4 NVMe  2 standard contains variants with up to four PCIe lanes, one SATA 6 Gbs and or one USB port So it is possible to connect PCIe as well as SATA SSDs