MSI B550-A PRO PRO series helps users work smarter by delivering an efficient and productive experience.
Featuring stable functionality and high-quality assembly, PRO series motherboards provide not only optimized professional workflows but also less troubleshooting and longevity.
With more cores’ processors, thermal and power design is more important to make sure the temperature keeps lower.
MSI extended PWM heatsink with 7W/mK thermal pad ensures even high-end processors to run in full speed with MSI motherboards.
SOCKET AM4 CPU (MAX SUPPORT) RYZEN 9 CHIPSET AMD® B550 Chipset DDR4 MEMORY 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3600/ 3733/ 3866/ 4000/ 4133/ 4266/ 4400 + Mhz by JEDEC and A-XMP OC MODE MEMORY CHANNEL Dual DIMM SLOTS 4 MAX MEMORY (GB) 128 PCI-E X16 2 PCI-E GEN Gen4 / Gen3 PCI-E X1 2 SATAIII 6 M.2 SLOT 2 RAID 0/1/10 TPM (HEADER) 1 LAN 1x Realtek® RTL8111H Gigabit LAN USB 3.2 PORTS (FRONT) 1(Gen 1, Type C), 2(Gen 1, Type A) USB 3.2 PORTS (REAR) 1(Gen 2, Type C), 1(Gen 2, Type A), 2(Gen 1, Type A) USB 2.0 PORTS (FRONT) 4 USB 2.0 PORTS (REAR) 4 SERIAL PORTS(FRONT) 1 AUDIO PORTS (REAR) 6 HD audio connectors DISPLAYPORT 1 HDMI 1 DIRECTX 12 FORM FACTOR ATX CROSSFIRE Y OPERATING SYSTEM Support for Windows® 10 64-bit