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

Should you buy a PCIe or SSD? can you put a gen 4 ssd in a gen 3 slot Can I insert a SATA drive into the PS5 console? No SATA SSDs aren't supported Should I remove the SSD if I send my PS5 console for repair canyonlands slot canyons PCIe drives are available for those who want to speed things up a notch, however Compared to PCIe NVMe SSDs, the current Gen 5 counterparts (such

can you use ddr3 in ddr4 slot On the it says PCIESATA does that mean I cant put gen 4 there? At the moment I have a WD PC SN530 PCIe Gen3 x4 NVMe installed on slot