All of MSI's Z490 motherboards are gaining PCIe 4.0 support with Rocket Lake | PC Gamer
Msi B450m A Pro Max Am4 Ddr4 Gaming Motherboard Support For Amd Ryzen 5 3400g 3500x 3600 3600x 3700x 3800x Processor - Buy Motherboards,Motherboard Gaming,Msi Motherboard Product on Alibaba.com
Amazon.com: MSI B550M PRO ProSeries Motherboard (Support 3rd Gen AMD Ryzen, AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 1, HDMI/DP, Micro-ATX) : Electronics
CES 2022: MSI Releases Four MAG B660M Mortar Motherboards
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Intel's 13th Gen Raptor Lake CPUs Gain Support On These Current MSI Motherboards | HotHardware
MSI MEG X670E ACE AM5 E-ATX AMD Motherboard - Newegg.com
Alleged MSI tech support email states older 300-series motherboards won't support AMD Ryzen 3000 processors - NotebookCheck.net News