USB flash drives can work as extra RAM — here's how it works

But wait! You may find the problem eases if you have some extra RAM to hand and you don't need to spend a fortune. By turning ...
Ars Technica

Difference between a USB flash drive controller and an SSD controller?

So I get some of the basic differences between a USB flash drive's controller and an SSD controller, like mentioned here https://superuser.com/questions/919...l ...
Computer Weekly

Storage technology explained: Flash vs HDD

The past 12 months saw flash storage nudge into areas from which it had hitherto been absent. In particular, this was because of the availability of denser – and therefore cheaper per-gigabyte (GB) – ...