AMD, today, unveiled the B450 chipset aimed at mainstream Ryzen customers. The B450 offers good value for money while also offering some of the features of the more expensive X470 chipset. The B450 chipset is compatible with all Ryzen CPUs and even supports overclocking with low-end motherboards.
https://www.notebookcheck.net/AMD-officially-unveils-the-Ryzen-B450-chipset.320106.0.html