Is it okay to put Gen 3 SSD in my motherboards Gen 4 pcie slots?

Two NVMe SSD slots on a low-profile x8 PCIe card Add your own SSDs For Mac, Windows, and Linux

Enjoy extremely fast transfer speeds via PCIe lanes Includes a heatsink and thermal padding SSD bus interface: NVMe

m2 slot mainboard Such motherboards usually have an extra x4 slot connected to the chipset, so in that case you should move your GPU to that slot and install the

m2_1 slot Diese unterstützen jedoch lediglich nur maximal PCIe x2 oder SATA und werden nur von den wenigsten Mainboards unterstützt