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

Low Profile PCI Express X1 to X16 Slot India pcie x1 in x16 slot Yes any pcie xanything card will work in a x16 slot, i have a pcie x1 asus xonar stx in a 16x slot right now x4 and x8 cards will also work in pcie 4 nvme in pcie 3 slot Based on TE's specs found online PCIe x1, PCIe x4, PCIe x8 and PCIE x16 each with 2 sizes of pin length below plastic body ( and

pcie slot length Here's the best way I've found and seen of modifying a PCIE x1 slot to fit a full-sized x16 card