Conquer the Battlefield
Introducing the all new B550-A PRO Motherboard from MSI. The MSI B550 motherboard supports the 3rd Gen AMD Ryzen processors with the addition of PCIe 4.0 technology for eye watering speeds. MSI PRO series lets you work smarter by delivering an efficient and productive experience. Featuring stable functionality and high-quality assembly. The MSI B550-A Pro motherboard provides not only optimized professional workflows but also less troubleshooting and longevity.
Lightning Gen 4 Solution
The latest Gen 4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.
DDR4 Boost
The Fully isolated DIMM slots to deliver pure data signals for the best gaming and overclocking performance.
Extended Heatsink
The MSI B550-A Pro features an all-metal extended heatsink to enlarge the surface area you can also expect more efficient heat dissipation allowing even high end processors to run at full speed.
Faster and undistorted current delivery
Core Boost technology combines MSI's premium layout and digital power design which allows for faster and undistorted current delivery to the CPU at pin-point precision. Not only supporting multi-core CPU, but creating the perfect conditions for your CPU overclocking.
LIGHTNING GEN 4 PCI-E
MSI lightning Gen 4 PCI-E is the latest and the fastest PCI-E data transfer solution with 64GB/s of unidirectional transfer bandwidth that has doubled compared to its previous generation. PCIe 4.0 maintains both backward and forward compatibility with older and newer specifications. Optimized by steel armor design and server grade PCB, you can enjoy next-gen devices without any compromise.
| CPU |
AMD AM4 Socket 3rd Gen AMD Ryzen™ Processors
*Not compatible with AMD Ryzen™ 5 3400G and Ryzen™ 3 3200G |
| Chipset |
AMD B550 |
| Memory |
4 x DIMM, Max. 128GB, 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+ MHz by A-XMP OC MODE |
| Onboard Graphics Outputs |
1 x DisplayPort
1 x HDMI |
| PCI Slots |
1x PCIe 4.0/ 3.0 x16 slot (PCI_E1)
1x PCIe 3.0 x16 slot (PCI_E3), supports x4 speed
2x PCIe 3.0 x1 slots |
| Storage |
6x SATA 6Gb/s ports
2x M.2 slots (Key M)
M2_1 slot (from AMD Processor)
Supports PCIe 4.0/ 3.0 x4
Supports SATA 6Gb/s
Supports 2242/ 2260/ 2280/ 22110 storage devices
M2_2 slot (from AMD B550 chipset)
Supports PCIe 3.0x4
Supports 2242/ 2260/ 2280 storage devices |
| Networking |
Realtek® GbE LAN chip (1000 Mbit/100 Mbit) |
| Audio |
Realtek® ALC892 codec High Definition Audio 7.1-channel |
| Connectivity |
AMD B550 Chipset
3x USB 3.2 Gen 1 5Gbps ports (1 Type-C internal connector, and 2 ports are available through the internal USB 3.2 Gen 1 5Gbps connector)
8x USB 2.0 ports (4 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors) AMD Processor
2x USB 3.2 Gen 2 10Gbps ports (1 Type-C port and 1 Type-A port on the back panel)
2x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel |
| Internal Ports |
1x 24-pin ATX main power connector
1x 8-pin ATX 12V power connector
1x 4-pin CPU fan connector
1x 4-pin water-pump fan connector
6x 4-pin system fan connectors
1x Front panel audio connector
2x System panel connectors
1x Chassis Intrusion connector
1x 4-pin RGB LED connector
2x 3-pin RAINBOW LED connectors
1xTPM module connector
1x Clear CMOS jumper |
| Form Factor |
ATX Form Factor, 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm ) |
| Warranty |
Three Year Manufacturer Warranty |
