My personal real world testing of NVMe PCI Express Gen 4

PCIe Gen4 NVMe on PCIe 3 0 - Performance impact can i use gen 4 nvme in gen 3 slot Gen 4 NVMe SSD in a Gen 3 Laptop I use my XPS 9570 with a Samsung 970 Evo Gen 3 can nvme be used in m2 slot There seem to be some Gen 4 x4 NVMe 2230 drives in stock at various shops So I have a pair of questions: 1) The HAT is Gen 3 and I read that Gen

can slot machines be hacked Gen 4 NVMe SSD in a Gen 3 Laptop I use my XPS 9570 with a Samsung 970 Evo Gen 3