SAYTAY Quad M.2 NVME SSD to PCI-E 4.0 X16 Adapter, High Speed 4x32Gbps Soft Raid Card with Individual LED Indicator Support 2230 2242 2260 2280 (ph44) - Walmart.com
PCIe-Bifurcation x16 to x8x8 PCI-E 4.0 x16 1 to 2 Expansion Card Gen4 Split Card | eBay
Physical Identification of PCI 2.0 vs PCI 3.0 vs PCI 3.0 Express on Motherboards for Graphics Card - YouTube
Amazon.com: ELECTOP NVME PCIe x16 Adapter, M.2 Key-M SSD to PCI 3.0 Express Expansion Card, Support 2230/2242/2260/2280 with Heat Sink, Compatible with Windows XP / 7/8 / 10 & MAC OS System : Electronics