Amazon.com: PCI-E SATA Expansion Card 6 Ports PCIe x4 to SATA 3.0 6Gbps Expansion Controller Adapter Card with 6 SATA Cables and Low Profile Bracket, Non-Raid(ASM1166) (PCIE X4 SATA 6 Ports) :
3X M.2 NVMe SSD NGFF to PCIE 3.0 X16 Adapter M Key Interface Card Suppor PCI 3.0 X4 Size M.2 Full Speed - Walmart.com
Laptop PCI-E x1 3.0x4 External Graphics Card Stand bracket NGFF PCI-E Riser External Video Card Dock - Walmart.com
Bifurcation on PCIe* 3.0 x16 Intel® NUC 9 Extreme/Pro Kits