Dual M.2 PCIe NVMe Adapter Without PCIe Splitter Function (PCIe Bifurcation Motherboard is Required), Support M.2 PCIe 4.0/3.0 SSD Soft RAID Setup in Windows/Linux
M.2 4x4 NVMe SSD Silent PCIe Card - Sonnet
I Built A PCIe 4.0 RAID Array - And It's STUPID FAST - YouTube
WD_BLACK™ AN1500 NVMe™ PCIe SSD Add-in-Card | Western Digital
I built the world's TINIEST NVMe SSD RAID array! - YouTube