Almost a year ago, AMD's high-end X570 chipset was the first to bring PCI Express 4.0 (PCIe 4.0) support to the desktop PC. That new bus standard offers up to 2X the bandwidth for the next generation of solid-state drives, graphics cards, network adapters, and more. Now, the B550 chipset is bringing the potential of PCIe 4.0 to mainstream builds everywhere. ASUS has a wide range of new motherboards to choose from with this chipset, and we've assembled this handy B550 motherboard guide to help you find the one that's right for you.

B550 motherboards enable 20 general-purpose PCIe 4.0 lanes from third-generation AMD Ryzen CPUs. Both the primary PCIe x16 and M.2 slots on all of our B550 boards offer PCIe 4.0 connectivity. Third-gen Ryzen chips also let us tap as many as four USB 3.2 Gen 2 ports running at up to 10Gbps direct from the CPU. The B550 silicon itself gets an upgrade to PCIe 3.0 connectivity for its built-in lanes, and AMD has already confirmed that future chips based on the Zen 3 architecture will drop right in. Those upgrades make B550 a tantalizing platform for mainstream builders the world over.