MSI B550-A-PRO

Performance & Thermal Design Socket: AMD Socket AM4, supporting Ryzen™ 5000, 5000 G-Series, 4000 G-Series, and 3000 Series processors. Power Design: Features a 10+2+1 Duet Rail Power System with Digital PWM. Extended Heatsink: Unlike many budget boards, the B550-A PRO has massive heatsinks on the VRMs, making it perfectly safe to run a Ryzen 9 5950X or 5900X without thermal throttling. Memory: 4 x DDR4 DIMM slots, supporting up to 128GB and speeds up to 4400 MHz (OC). High-Speed Storage & Expansion PCIe 4.0 Support: This board fully utilizes the B550 chipset to offer PCIe 4.0 bandwidth for both your graphics card and your primary SSD. M.2 Slots: 1 x Lightning Gen 4 M.2 slot (up to 64Gb/s) with M.2 Shield Frozr heatsink. 1 x PCIe 3.0 M.2 slot. PCIe Slots: 1 x PCIe 4.0/3.0 x16 (Primary slot with Steel Armor). 1 x PCIe 3.0 x16 slot (runs at x4). 2 x PCIe 3.0 x1 slots. Connectivity & Rear I/O Networking: Realtek® 8111H Gigabit LAN. USB: Features USB 3.2 Gen 2 (10Gbps) ports in both Type-A and Type-C for modern high-speed peripherals. Display: Supports integrated graphics via: 1 x HDMI 2.1 (supports 4K @60Hz). 1 x DisplayPort. Professional & DIY Features Flash BIOS Button: Update the BIOS in seconds with only a USB stick—essential for making older stock compatible with Ryzen 5000 series CPUs. EZ Debug LED: Simple light indicators to tell you exactly which part of your system is failing to boot (CPU, DRAM, VGA, or Boot). 6-Layer PCB: Designed with 2oz thickened copper to provide better heat dissipation and higher reliability.