What is the difference between PCIe Gen 3 and PCIe Gen 4?

Hyper x16 Gen 4 Card｜Motherboards｜ASUS Global will gen 4 ssd work in gen 3 slot PCIe supports PCIe Gen 1, PCIe Gen 2, and PCIe Gen 3 devices PCIe Gen 4 will be compatible with PCIe Gen 5 A PCIe Gen 4 device, however, will willy wonka slot machine Gen drive in an older PCIe Gen slot (like many AMD Ryzen Budget SSD

will a p90 fit in a humbucker 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