The AMD A520 is an entry-level chipset that supports Ryzen 3000 processors based on the Zen 2 architecture. Unlike the AMD B550 and X570 chipsets, the A520 does not support PCIe 4.0 or overclocking. Motherboards with the A520 chipset support PCIe 3.0 and provide a reliable foundation for office and home users for their PCs.