It's really hard to justify running this. Homelabbers are ditching equivalent Dell/HP servers because they are too power hungry and underperform, but at least those can also benefit from having a massive amount of RAM. This is another X99 chipset recycling operation - which at this point is even worse because they're out of support and Spectre/Meltdown mitigations can kill performance even more.
We're talking about 10-12 yo hardware, probably salvaged second-hand parts put together in a new case with some LEDs, and the supposedly low price tag is all that defines whether this is a good deal or not?
This is eBay-grade sold as new, practically a scam.
Equipped with a dedicated graphics card and a Xeon processor, the P99S stands out with a surprisingly sleek design—but its specifications are, to put it mildly, unconventional. Marketed by RmataMini as a gaming system, it is unlikely to deliver a convincing gaming experience in most real-world scenarios.