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
StarTech.com 2x M.2 SATA SSD Controller Card - PCIe - PCI Express M.2 SATA III Controller - NGFF Card Adapter (PEX2M2) - storage controller - M.2 Card / SATA 6Gb/s - PCIe 2.0 x2
Amazon.com: PCIE to SATA Expansion Card , Hot Swap 8 Ports SATA3.0 Adapter Riser Card Fit for 88SE92xx JMB5XX Compatible with SATA 6G 3G 1.5G Hard Drives Supports PCIE X2 X4 X8