MSI Alaplap AM4 B550M MORTAR AMD B550, mATX

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
  • 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

1. Please refer www.msi.com for more information on compatible memory.

Expansion Slot

• 1x PCIe 3.0/ 4.0 x16 slot (PCI_E1) ¹
• 1x PCIe 3.0/ 4.0 x16 slot (x4 mode)
• 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)
  • 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

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

Audio

Realtek^® ALC892/ALC897 Codec

• 7.1-Channel High Definition Audio

LAN

• 1x Realtek^® RTL8111HN 1Gbps LAN controller