The Pro 500 joins AMD's list of motherboard chipsets for small form factor systems.
AMD Lists New Pro 500 Motherboard Chipset for the AM4 Socket : Read more
AMD Lists New Pro 500 Motherboard Chipset for the AM4 Socket : Read more
Why make guesses that are counter to not only what we know about A300 and X300, but things already discussed in the article? (Besides the fact that I guess that statement can unwittingly kind of true if you choose to not use an APU, since the Ryzen CPUs include a chip very similar to the X570 chipset in the form of the I/O die...)If we had to make a guess, we suspect the Pro 500 chipset is based on a similar design as AMD's high-end X570 chipset.
The A300 and X300 "chipsets" mean the motherboard is built for an SoC CPU/APU without an external chipset. Ryzen has some SATA and USB on the CPU/APU itself, so those can provide the needed connectivity for low-cost or small footprint systems.... AMD’s X300, A300, and PRO 500 chipsets provide processor-direct access for excellent performance. ...