What is the difference between PCIe Gen 3 X2 and X4 SSDs? Can these two SSDs be used for laptops that support the PCIe interface? - Quora
FAQs for SATA and M.2 SSDs - Kingston Technology
1TB M.2 2230 NVMe PCI Express 3.0 x2 SSD (Solid State Drive)-30mm Half Size, Brand : Samsung PM991 MZ-VLQ1T00, KLFGGAR4AA-K0T0 For Microsoft Surface Pro X, Microsoft Surface Pro 7+, Microsoft Surface Laptop
Ssd M2 Nvme Pcie 3.0x2 2242 M.2 Ssd 120gb 240gb 512gb 256gb Hard Drive Disk M.2 2242 Ssd For Laptop Desktop Computer Accessories - Solid State Drives - AliExpress
PCIE-Q470 Full-size PICMG 1.3 CPU Card | DDR4, HDMI, USB 3.2 , IAUDIO, M.2
Overview of M.2 SSDs | Puget Systems
5 Bay M.2 RAID Adapter Soft RAID Function - GLOTRENDS
5 Slot M.2 B-key SATA Base PCI-e 3.0 x2 Bandwidth Controller Card Require x16 Slot
hardware - Force renegotiation of PCI Express link speed? x2 card reverts to x1 width - Server Fault