Amazon.co.jp: ASUS AMD B450 搭載 AM4 対応 マザーボード PRIME B450M-K 【MicroATX】【 第3世代 AMD Ryzen CPU に対応】 : パソコン・周辺機器
AMD caves-in to demand for Zen 3 support on X470 and B450 boards with an optional Beta BIOS, here's all you need to know about AMD's proposed upgrade path - NotebookCheck.net News
B450 Motherboards Might "Unofficially" Support AMD's Ryzen 4000 Desktop CPUs | Hardware Times
AMD Ryzen 4000 Zen 3 will be compatible with Socket AM4, but it is end of the road for X470, B450, and below motherboard owners - NotebookCheck.net News
Les chipsets X470 et B450 supporteront les CPU AMD Ryzen 4000