Can You Help me Understand This SATA NVMe PCIe SSD Gen

What is the difference between PCIe Gen 3 and PCIe Gen 4? can you put a gen 4 ssd in a gen 3 slot All PCIe Generations slots and slots are backward compatible so there is no need to worry about purchasing the wrong expansion card or NVMe SSD But you cannot determine a partition for slot PCIe 4 is backwards compatible with gen 3, 2 & 1, and you will get at least the same performance from putting a drive in a slot as you

candy village slot But let's be real Your current PC almost certainly doesn't have a PCIe slot, and even if it does, Gen 5 drives run hot and cost