Amazon.com: ASUS Prime B450M-A II AMD AM4 (Ryzen 5000, 3rd/2nd/1st Gen Ryzen Micro ATX Motherboard (128GB DDR4, 4400 O.C.), NVMe, HDMI 2.0b/DVI/D-Sub, USB 3.2 Gen 2, BIOS Flashback, and Aura Sync) :
Best B550 Motherboards: AMD's More Affordable PCIe 4.0 Option | Tom's Hardware
New!MSI B450M-A PRO MAX Micro ATX AMD B450 DDR4 M.2 USB3.2 STAT 3.0 SSD 64G Best support R9 desktop CPU Socket AM4 Motherboard - AliExpress
BEST Budget B450 MATX Asrock B450M Pro4 Motherboard & Features Tour - YouTube
ASRock > Fatal1ty B450 Gaming-ITX/ac
10 Best B450 Motherboards to Buy in 2022 for Gaming & Productivity! - TechNadu