Micro Center AMD Ryzen 7 5800X 8-Core 16-Thread AM4 Unlocked Desktop Processor with MSI MAG X570S Tomahawk MAX WiFi Motherboard (DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, AC Wi-Fi 6, HDMI)
PRIME X470-PRO|Motherboards|ASUS USA
Ryzen 3000: Asus unlocks PCIe 4.0 on X470 and B450 motherboards | PC Builder's Club
BIOS Update Enables PCIe 4 On AMD X470 Boards With Ryzen 3000
Gigabyte's latest BIOS update enables PCIe 4.0 support on its AMD X470 and B450 motherboards - NotebookCheck.net News
Alleged ASUS X470/B450 PCIe 4.0 Compatibility Table Paints A Confused Picture
These ASUS X470 And B450 Boards Support PCIe 4.0! – Pokde.Net
These ASUS X470 And B450 Boards Support PCIe 4.0! – Pokde.Net
Ryzen 3000: Asus unlocks PCIe 4.0 on X470 and B450 motherboards | PC Builder's Club
AMD has decided to block PCIe 4.0 support on all pre-X570 motherboards | PC Gamer
MSI MEG B550 Unify Gaming Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, Dual M.2, USB 3.2 Gen 2, HDMI, Wi-Fi 6 AX, ATX, AMD Ryzen 5000 Series Processors)
Asus publishes X470 and B450 PCIe Gen 4 compatibility chart - Mainboard - News - HEXUS.net