Is it okay to use PCI Gen 4 drives with gen 3 slots?

will a gen 4 ssd work in a gen 3 slot   Dan will gen 4 nvme work in gen 3 slot

Kinda odd he spent nearly 4 minutes talking about the difference between Gen 3 and Gen 4

They are all compatible Even a PCIe SSD will work just fine, but the speed will be limited to PCIe x4  Two types of PCIe slot on an Asus H81M-K motherboard Various slots on a computer motherboard, from top to bottom: PCI Express x4; PCI Express x16; PCI Express

lucky charm slot machine Hey all, Bought a new HP Omen 30L-1139 it has expansion slots for upto 3 SSDs work was to remove the SSD and reinstall windows 11  PCIe x4 drives are backward compatible and will work on PCIe systems, but of course they will not reach their full potential speed on