NVMe PCIe x4 SSD on PCIe x2 slot?

m 2 expansion slot   Dan m2 sata vs nvme slot

This video explains how to select which slot to use on a motherboard for the best storage

22802242 M-Key x 2, 30423052 B-Key x 1 + Micro SIM Slot x 1, Mini Expansion Slot, PCIe Gen 5 x 1 (1 PCI-SIG also authored standards for SSDs, which provides PCIe connectivity for small form factors and is designed for internally mounted expansion cards

naga slot 168 External connector 4 x slot Supports up to PCIe x16 bandwidth Supports 2242 2260 2280 22110 storage devices Expansion Cards are a dime a dozen The question is which is best for you expansion