CPU
Supports AM4 socket 3rd Gen AMD Ryzen™ processors, and future AMD Ryzen™ processors with BIOS update
See supported processors
CHIPSET
AMD B550 Chipset
MEMORY
• 4x DDR4 memory slots, support up to 128GB 1
o Supports DDR4 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz by JEDEC
o 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
1. Please refer www.msi.com for more information on compatible memory.
See supported memory
EXPANSION SLOT
• 1x PCIe 3.0/ 4.0 x16 slot (PCI_E1) 1
• 2x PCIe 3.0 x1 slots
1. The supported specification depends on installed processor.
ONBOARD GRAPHICS
• 1x HDMI 2.1 port, supports a maximum resolution of 4096x2160 @60Hz 1 2
• 1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz 1
• Maximum shared memory of 16 GB
1. Available for the processor with integrated graphics.
2. Graphics specifications may vary depending on the CPU installed.
STORAGE
AMD B550 Chipset
• 4x SATA 6Gb/s ports
• 2x M.2 slots (Key M)
o M2_1 slot (from AMD processor)
Supports PCIe 4.0/ 3.0 x4 1
Supports SATA 6Gb/s
Supports 2242/ 2260/ 2280 storage devices
o M2_2 slot (from AMD B550 chipset)
Supports PCIe 3.0x4
Supports 2242/ 2260/ 2280 storage devices
1. The supported specification depends on installed processor.
RAID
AMD B550 Chipset
• Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices
• Supports RAID 0 and RAID 1 for M.2 NVMe storage devices
USB
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
• 4x USB 3.2 Gen 1 5Gbps Type-A ports (4 Type-A ports on the back panel)
AUDIO
Realtek® ALC892/ALC897 Codec
• 7.1-Channel High Definition Audio
LAN
• 1x Realtek® RTL8111HN 1Gbps LAN controller
INTERNAL CONNECTORS
• 1x 24-pin ATX main power connector
• 1x 8-pin ATX 12V power connector
• 4x 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 Serial port connector
• 1x Chassis Intrusion connector
• 2x 4-pin RGB LED connector
• 2x 3-pin RAINBOW LED connectors
• 1xTPM module connector
• 1x Clear CMOS jumper
BACK PANEL PORTS
USB 3.2 Gen 1 5Gbps Type A
PS/2 Combo Port
Gigabit LAN Port
Flash BIOS Button
DisplayPort
HDMI
USB 2.0 port
USB 3.2 Gen 1 5Gbps Type A
HD Audio Connectors
I/O CONTROLLER
NUVOTON NCT6687-R Controller Chip
DIMENSIONS
• Micro-ATX Form Factor
• 9.6 in. x 9.6 in. (24.4 cm x 24.4 cm)
