MSI B550-A PRO Motherboard ATX – Supports AMD Ryzen 3rd Gen Processors, AM4, DDR4 Boost (4400MHz/OC), 1 x PCIe 4.0/3.0 x16, 1 x PCIe 3.0/3.0 x16, 1 x M.2 Gen4 x4, 1 x M.2 Gen3 x4, HDMI, Gigabit LAN

Powered by 3rd generation AMD Ryzen 9, Ryzen7, Ryzen 5 AM4 to maximize connectivity and speed with lightning M.2, PCIe 4.0, USB 3.2 Gen2 and up to 128 GB of DDR4 (4400 MHz)
Core Boost technology combines optimised power circuit layouts and digital power design which allows for precise and steady current delivery to the CPU
With 3rd Gen Ryzen processors, this motherboard features the latest Gen4 PCI-E and M.2 solution with up to 64 GB/s bandwidth for maximum transfer speed and allow for increasing storage capacity at maximum speed
Addressable LED Ready with Mystic Light Extension provides a JRAINBOW pinheader for complete function to connect to addressable RGB strips and control the RGB light all around the system
AUDIO BOOST which rewards your ears with studio grade sound quality for the most immersive gaming experience
Enhanced Thermal Solution includes extended heatsink, 7 W/mK level thermal and choke pad with 2 oz thickened copper PCB to ensure best performance for gamers
Flash BIOS Button allows users to simply use a USB key to flash any BIOS within seconds, without installing a CPU, memory or graphics card