MSI B550M-A PRO Motherboard
MSI B550M-A 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.
PCI-E Steel Armor
Protecting VGA cards against bending and EMI
Lightning Gen4 Solution
The latest Gen4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.
Core Boost
With premium layout and fully digital power design to support more cores and provide better performance.
EZ Debug LED
Easiest way to troubleshoot.
Audio Boost
Reward your ears with studio grade sound quality for the most immersive audio experience.
DDR4 Boost
Advanced technology to deliver pure data signals for the best gaming performance and stability.
2oz Thickened Copper PCB
An enhanced PCB design improves heat dissipation and performance reliability.
Specifications:
| Model Number | B550M-A PRO |
| CHIPSET | AMD B550 |
| CPU | Supports AMD Ryzen™ 5000 & 3000 Series desktop processors (not compatible with AMD Ryzen™ 5 3400G & Ryzen™ 3 3200G) and AMD Ryzen™ 4000 G-Series desktop processors |
| MEMORY | 2x DDR4 memory slots, support up to 64GB 1 Supports DDR4 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz by JEDEC Supports DDR4 2667/ 2800 /2933 /3000 /3066 /3200 /3466 /3600/ 3733 /3866 /4000 /4133 /4266 /4400/ 4600+ MHz by A-XMP OC MODE 1DPC 1R max speed 4600 MHz 1DPC 2R max speed 3866 MHz Dual channel memory architecture Supports non-ECC UDIMM memory Supports ECC UDIMM memory (non-ECC mode) Supports un-buffered memory |
| AUDIO | 7.1-Channel High Definition Audio |
| STORAGE | 4x SATA 6Gb/s ports 1x M.2 slot (Key M) (from AMD Processor) Supports PCIe 4.0/ 3.0 1 Supports SATA 6Gb/s Supports 2242/ 2260/ 2280 storage devices The supported specification depends on installed processor. |
| ONBOARD GRAPHICS | 1x HDMI™ 2.1 port, supports a maximum resolution of 4096×2160 @60Hz12 Support HDCP 1.4 & 2.3 1x DVI-D port, supports a maximum resolution of 1920×1200@60Hz1 Maximum shared memory of 16 GB Available for the processor with integrated graphics. Graphics specifications may vary depending on the CPU installed.. |
| SLOT | 1x PCIe 3.0 x1 slot 1 1x PCIe 4.0/3.0 x16 slot The supported specification depends on installed processor. |
| USB | 2x USB 3.2 Gen 1 5Gbps ports are available through the internal USB 3.2 Gen 1 5Gbps connector 6x USB 2.0 ports (2 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors) AMD Processor 4x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel |
| LAN | 1x Realtek® RTL8111H Gigabit LAN controller |
| INTERNAL IO | 1x 24-pin ATX main power connector 1x 4-pin ATX 12V power connector 4x SATA 6Gb/s connectors 1x M.2 slots (M-Key) 1x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports) 2x USB 2.0 connectors (supports additional 4 USB 2.0 ports) 1x 4-pin CPU fan connector 1x 4-pin system fan connectors 1x Front panel audio connector 2x System panel connectors 1x Chassis Intrusion connector 1xTPM module connector 1x Clear CMOS jumper |
| BACK PANEL PORTS | LAN port HDMI™ DVI-D Keyboard / Mouse USB 3.2 Gen 1 5Gbps Type-A USB 3.2 Gen 1 5Gbps Type-A USB 2.0 Ports Audio Connectors |
| OPERATING SYSTEM | Support for Windows® 11 64-bit |
| PCB INFO | mATX 200mmx236mm |
| Warranty | 3 Years |
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