What is PCIe? Understanding PCIe Slots, Cards and Lanes

using pcie 4 in 3 slot   Dan panen 138 slot

with different form factors such as PCIe card slot, , and U NVMe Drives can use 4 PCIe lanes, which means a theoretical maximum

Mac Pro Expansion Modules can use up to two slots each – in slots 1–2 and slots 3–4 Mac Pro comes with the Apple IO card pre-installed in slot 8 Instead of a 10 Gigabit network card requiring multiple PCIe 3 lanes, it can get away with just a 1x slot Graphics cards can operate at PCIe 4

wager slot I don't see a problem with the first 2 cards, but I'm wondering if the 3rd card will work as well? Given that PCIE is twice the bandwidth of PCIe 4 is backwards compatible with gen 3, 2 & 1, and you will A good quality pcie 4 drive in a pcie 3 slot will be near identical