can you use pcie 4.0 in 5.0 slot
PCIe 3.0 vs 4.0: What’s the Difference and Which Is Better - MiniTool ...
I tested PCIe 3.0 x4 10Gbe NIC in a PCIe 3.0 x1 slot, and here's my thoughts and results. ... Therefore, can you use a PCIe 3.0 x4 10Gbe NIC in a PCIe 3.0 x1 slot?
PCIe Slots: Everything You Need to Know | HP® Tech Takes
Likewise, a PCIe 3.0 SSD also can be inserted into a motherboard with PCIe 4.0 slot, and you will only get PCIe 3.0 performance.
Can You Use PCIe 4.0 SSD On Your Existing Motherboard?
Any motherboard with an NVMe M.2 slot can accommodate the PCIe 4.0 SSD Can You Use PCIe 4.0 SSD On Your Existing Motherboard?