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

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 is priced at £97.73 — stable over the last 30 days.

Price last checked: 25 Mar 2026, 05:07

• 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