Which port is required for NVMe SSD

Which Slot Should You Use? pcie 4 nvme in pcie 3 slot Dual Channel DDR5：4*SMD DIMMs with AMD EXPO™ & Intel® XMP Memory Module Support; SuperSpeed Storage：3*PCIe Connectors; EZ-Latch：PCIe x16 Slot pcie slot function 2 slots — supporting both PCIe and — that allow you to expand your system with high-performance SSD storage Designed for the latest generation of NVMe

pcie 40 in pcie 30 slot  An 2280 solid-state drive , 22 mm wide and 80 mm long Connects to, Motherboard via one of: PCIe ×4; PCIe ×4; PCIe ×4; Serial ATA