B650 Aorus Elite AX

can i run a pcie 4 0 in 3 0 slot   Dan can you put a pcie x4 in a x16 slot

Your PCIe card will run at the lowest generation present So if you put a PCIe card in a PCIe slot, you'll get PCIe performance

To connect an specified SSD, your motherboard will need to have an slot can exchange data 4 times faster What does PCIe stand for? PCIe According to the spec sheet it does supports PCie 1 x PCIe x16 slot Source: Link above

baron bloodmore slot If you connect this card to a PCIe slot, it will run at PCIe speed · If the slot is only x4 electrically, so it will continue to run any No need for PCIe4, PCIe3 will be fine · No you will not need to upgrade your motherboard from pcie to a current gen to use this card,