Intel Optane DC P5800X PCIe 4 NVME SSD Review - SSD Perfection Via Throughput, IOPS and Latency | The SSD Review
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
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Intel Optane SSD 900p Makes a Secret Appearance - has PCI Express 4.0 interface
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Amazon.com: ASUS Hyper M.2 X16 PCIe 4.0 X4 Expansion Card Supports 4 NVMe M.2 (2242/2260/2280/22110) up to 256Gbps for AMD 3rd Ryzen sTRX40, AM4 Socket and Intel VROC NVMe Raid : Electronics
PCIe 4.0 vs. PCIe 3.0 SSDs Benchmarked | TechSpot
Intel's new Optane SSD P5800X supports PCIe 4.0 and delivers speeds of up to 7.2GB/s - HardwareZone.com.sg