Amazon.in: Buy ASUS Prime B450M-A II (AMD AM4 Socket for Ryzen 5000/4000/G/ 3rd/2nd/1st Gen AMD Ryzen) DDR4 Micro ATX Motherboard with M.2 Support HDMI/DVI-D/D-Sub 1Gb Ethernet BIOS Flashback and Aura Sync RGB
AMD Ryzen 4000 Zen 3 Desktop CPUs Alleged To Work With B450 AM4 Motherboards | HotHardware
BIOSTAR B450 most successful entry motherboard
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
MSI Rolls Out AMD Ryzen 7 5800X3D, Ryzen 5000 & Ryzen 4000 CPU Support BIOS on 500, 400 & 300 Series Motherboards
B450 Motherboards Might "Unofficially" Support AMD's Ryzen 4000 Desktop CPUs | Hardware Times
AMD Zen 3, Ryzen 4000-series CPUs will work on B450, X470 motherboards - ThinkComputers.org