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
AMD to Support Zen 3 and Ryzen 4000 CPUs on B450 and X470 Motherboards
ASUS Announces UEFI BIOS Support for AMD Ryzen 7 5800X3D and new AMD Ryzen 5000 Series and 4000 Series CPUs for ASUS AM4 X570, B550, X470, B450, X370, motherboards* 83 motherboards listed
AMD Backtracks, Announces Zen 3 Ryzen 4000 CPU Support For X470 And B450 Motherboards | HotHardware
AMD B450 and X470 to support Zen3 and Ryzen 4000 CPUs - - Gamereactor
MSI Performance Gaming AMD X470 Ryzen 2ND and 3rd Gen AM4 DDR4 DVI HDMI Onboard Graphics CFX ATX Motherboard (X470 Gaming Plus Max) : b07y468hv3 : さくら機電 - 通販 - Yahoo!ショッピング
MSI X470 GAMING PLUS MAX Motherboard ATX - Supports AMD Ryzen 1st, 2nd and 3rd Gen Processors, AM4, DDR4 Boost (3866MHz/OC), 2 x PCIe 3.0 x16, 1 x PCIe 2.0 x16, 2
MSI X470 GAMING PLUS MAX AM4 ATX AMD Motherboard - Newegg.com
Amazon.com: GIGABYTE X470 AORUS ULTRA GAMING (AMD Ryzen AM4/ X470/ USB 3.1 Gen 2 Front Type C/ ATX/ DDR4/ Motherboard) : Electronics
MSI are ready to support Ryzen 5000/4000 series processors for AMD 500, 400, and 300-series Motherboards