MSI B550-A PRO

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Specifications
Specifications
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
Chipset AMD B550 Chipset
Memory
∙ 4x DDR4 memory slots, support up to 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
▫ 1DPC 1R max speed 4400 MHz
▫ 1DPC 2R max speed 3866 MHz
▫ 2DPC 1R max speed 4000 MHz
▫ 2DPC 2R max speed 3600 MHz
∙ Dual channel memory architecture
∙ Supports non-ECC UDIMM memory
∙ Supports ECC UDIMM memory (non-ECC mode)
∙ Supports un-buffered memory
* Please refer www.msi.com for more information on compatible memory.
Expansion Slot
∙ 1x PCIe 4.0/ 3.0 x16 slot (from CPU)
▪ PCI_E1 supports PCIe 4.0x16 mode for AMD Ryzen™
5000 & 3000 Series processors
▪ PCI_E1 supports PCIe 3.0x16 mode for AMD Ryzen™
5000 G-Series & 4000 G-Series processors
∙ 3x PCIe 3.0 x16 slots (from B550 Chipset)
▪ PCI_E2 & PCI_E4 support x1 mode
▪ PCI_E3 supports x4 mode*
* When installing PCIe SSD in M.2_2, PCI_E3 slot will be unavailable.
Multi-GPU ∙ Supports 2-Way AMD CrossFire™ Technology
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