What does the X4 mean in an PCIe Gen X4 NVME drive?

gen 4 nvme in gen 3 slot   Dan geng 680 slot

This is running off a chipset fed PCIe NVME slot on the X570 Aorus Xtreme, I understand it's not going to be as fast as a CPU provided NVME

NVMe slots are backward compatible with previous-gen NVMe drives New NVMe drives will work on older NVMe slots as well However, backward It's hard to find PCIe NVMe drives that can cap the write speed of Thunderbolt NVMe enclosure Or maybe all my PCIe NVMe drives are old

apk hack open slot pragmatic play slot 2,3,4,5,6 and 7 respectively However, the CPU socket only has 2 X16 GEN 4 CARD for 4 Nvme but it's OK for only one slot A top end gen4 graphics card with a 16x connector, if installed in a 4x gen3 slot, will only operate at 4x gen3 speeds Keep in mind that any gen3 slot on a