Intel technical marketing performance engineer, Frank Ober, tweeted (above) that Intel can send PCIe 4.0-capable SSDs to developers, but they'll need PCIe 4.0-capable CPUs and motherboards to test them. The super-fast new Alder Stream SSDs (an updated version of their Optane drive tech, with second-gen 3D XPoint technology).
@glcst would you like to test on gen2 pcie 4 capable optane ssd to see your code's potential? Then I can set that up for you. Send me a private email when you are ready... @axboe has his own...
— Frank Ober (@fxober) 24 december 2019