• 4x DDR4 memory slots, support up to 128GB 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+ MHz by A-XMP OC MODE


• 1DPC 1R max speed 4400 MHZ


• 1DPC 2R max speed 3733 MHZ


• 2DPC 1R max speed 3866 MHZ


• 2DPC 2R max speed 3466 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.

• 1x PCIe 3.0/ 4.0 x16 slot (PCI_E1)


• 1x PCIe 3.0 x16 slot (PCI_E4), supports x4 mode


• 2x PCIe 3.0 x1 slots
  The supported specification depends on installed processor.PCI_E4 will be unavailable when an M.2 SSD is installed in the M2_2 slot.

• Supports 2-Way AMD CrossFire™ Technology

• 1x HDMI port, supports a maximum resolution of 4096x2160 @24Hz 1


• 1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz 1


• Maximum shared memory of 2048 MB


• Available for the processor with integrated graphics.

AMD B550 Chipset

• 6x SATA 6Gb/s ports


• 2x M.2 slots (Key M)


• M2_1 slot (from AMD processor)


• Supports PCIe 4.0/ 3.0 x4 1


• Supports SATA 6Gb/s


• Supports 2242/ 2260/ 2280 storage devices


• M2_2 slot (from AMD B550 chipset)


• Supports PCIe 3.0x4


• Supports 2242/ 2260/ 2280 storage devices


• The supported specification depends on installed processor.

• Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices


• Supports RAID 0 and RAID 1 for M.2 NVMe storage devices

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)


• 6x USB 2.0 ports (2 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

• Realtek ALC1200 Codec
  7.1-Channel High Definition Audio
  Supports S/PDIF output

• 1x Realtek RTL8125B 2.5Gbps LAN controller

• 1x 24-pin ATX main power connector


• 1x 8-pin ATX 12V power connector


• 6x SATA 6Gb/s connectors


• 2x M.2 slots (M-Key)


• 1x USB 3.2 Gen 1 5Gbps Type-C port


• 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 water-pump fan connector


• 3x 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

• DisplayPort


• PS/2 Combo Port


• 2.5G LAN Port


• USB 3.2 Gen 2 10Gbps (Type-A)


• HD Audio Connectors


• HDMI Port


• Flash BIOS Button


• USB 2.0 port


• USB 3.2 Gen 1 5Gbps (Type-A)


• USB 3.2 Gen 2 10Gbps (Type-C)


• Optical S/PDIF OUT

• Micro-ATX Form Factor


• 9.6 in. x 9.6 in. (24.4 cm x 24.4 cm)

• 8 mounting holes