Can a PCIe Device Work in a PCIe Slot?

Can a PCIe Device Work in a PCIe Slot? pcie 4 0 in pcie 3 0 slot Slot are either PCIe or depending on riser selection and rear drive bay selection The use of some slots requires two processors Slots are configured pcie slot pinout PCIe x16 Slots 1 2 3 4 7 5 AMD B550 Ryzen AM4 Gaming ATX motherboard with PCIe® , teamed power stages, Intel®

pcie slot pinout 228022110 NVMe SSD slot x1 228022110 NVMe SSD slot x1 Memory expansion 1* PCIe x16 slot (Half-height, single

pcie m2 slot With PCIe you get roughly 2 GBs of bandwidth per lane, giving the 6500 XT a ~8 GBs communication link with the CPU and system memory But After a quick Google search, I found this article which explains that: a PCIe x16 slot can theoretically hit approximately 32 gigabytes