Asus PRIME X570-PRO Motherboard Socket AM4 Mainboard DDR4 Overclocking M.2 PCI-E 4.0 Original Desktop Computer AMD X570 Pro Used - Price history & Review | AliExpress Seller - Amigos777 Store | Alitools.io
AMD Reveals the X570 Chipset: PCIe 4.0 is Here
Amazon.com: ASUS ROG Strix B550-F Gaming (Wi-Fi) Mainboard Sockel AM4 (ATX, Ryzen, PCIe 4.0, WiFi6, Intel 2,5 Gbit/s-Ethernet, 2x M.2 mit Kühlern, SATA 6Gbit/s, USB 3.2 Gen 2, Aura Sync) : Electronics
Forget about those BIOS updates: Pre-X570 mainboards will not support PCIe Gen 4 - NotebookCheck.net News