https://www.techradar.com/news/intel-reveals-optane-memory-sticks-that-go-up-to-a-colossal-512gb-in-size

Intel has finally crammed its Optane technology into a traditional memory stick form, albeit with the initial offering unsurprisingly aimed at heavyweight rather than consumer usage – but this points the way to promising things to come.

Intel first announced 3D Xpoint tech, which Optane is built on, almost three years ago now, although thus far Optane products have only been available as SSDs (or cache modules to speed up traditional spinning drives).