Can I Use a PCIe 3.0 Card in a 2.0 Slot? - PC Guide 101
Just to clarify, if you have an Intel motherboard with M.2 Gen 5 and M.2 Gen 4 and choose to install your SSD into the M.2 Gen 4 slot, you will not lose any PCIe bandwidth for the graphics card.
Pcie Ssd - Scorptec Computers
Pcie Ssd found in: Simplecom EC415 NVMe M.2 SSD to PCIe x4 x8 x16 Expansion Card - Black, SilverStone ECM40 PCIE 4.0 x16 to 4x M.2 NVMe SSD Adapter Card, Ugreen M.2 PCIe NVMe SSD Enclosure, SilverStone ECM27 3 Port M.2 SSD to PCI..
How to Install an M.2 SSD in the Lenovo ThinkPad T440s | Laptop Mag
If you have a Lenovo ThinkPad T440s, you can install a speedy, inexpensive SSD in its M.2 slot to go with the existing hard drive.