This fails a basic smell test: For DDR5, there is only a ~6% price difference between 16 and 32GB. Reality is that 2x16GB goes for about 400 (so that checks out), but 16GB of DDR5 can be had for a bit more than half that (250ish)-- obviously, otherwise people would just buy a 32GB dual channel kit and sell both 16GB sticks at a huge markup.