What Is PCI Express 5.0, and Why Does It Matter for the ...
Compatible with PCI-E 1X / 4X / 8X / 16X slot. Note: M.2 NGFF to PCI-E X4 riser card, use this riser card to convert M.2 NGFF interface to ordinary PCI-E X4 ...
What Is an M.2 Slot and What Devices Use the M.2 Slot? - MiniTool
What is an M.2 slot? If you want to know, then this post is what you need. Besides, you can also know what it can do and what devices use the M.2 slot.
hard drive - M.2 M-key SSD but Sata Slot? - Super User
The T480s WWAN M.2 slot runs at 16Gbps 8Gbps and requires a B+M key 2242 small form factor SSD in order to free up the primary 2280 M-key NVMe slot for 32Gbps-M.2 eGPU use.