With AMD’s new mainstream Ryzen 3 3000 CPUs hitting our test bench a couple of weeks ago and Vega-packing Ryzen 4000 Renoir desktop chips seemingly waiting in the wings, now is as good a time as any for new affordable AMD motherboards. Board makers have recently been busy rolling out to Intel-based Z490 boards. But those same companies are also about to usher in a slew of B550 boards (announcing today and going on sale starting June 16) for recent AMD processors that bring most of the key features (like PCIe 4.0 support) of the higher-end X570 platform that launched last year at lower price points that start at $100.