Review on ASRock B450M STEEL LEGEND: AM4 Socket, AMD Promontory B450, DDR4, CrossFireX Support, M.2, SATA3, USB3.1, A&GbE - MicroATX Motherboard by Max Guerrero

Can't speak for every board but the one I ordered direct from Revain in early August worked out of the box with a Ryzen 3000. There was a sticker for it says on the outside. The board itself is one of the best B450s and isn't mentioned often because it came out later. The only issue would be that the VRM cooling would be decent, not great. If you're using this board with an 8-core CPU and for overclocking, you *might* need either a CPU cooler with a fan (like the Ryzen Wraith models) or a top- or side-mount fan. The BIOS works well, it's easy to manage everything. The sound quality is AWESOME for a budget board, this should be highlighted as a selling point. RGB is easy to set up, lots of settings or you can just turn it off. I only configured white as I have an RL06 with white fans.