With the new CPUs, some of the new X370 boards have pushed their pricing up with all of the added features. Well, this is where the B350 chipset comes in. AMD dropped the number of USB and SAT ports on the B350 and you can’t get SLI on a B350 board but they still allow overclocking and the prices for B350 boards are a lot cheaper. This will come into play more with the mid range Ryzen CPUs, but even paired with the Ryzen 7 1700, a B350 board can be a good value.
Read more @ LANOC