MSI MAG B550 Tomahawk (7C91-001R), AM4, AMD B550, ATX

AM4 Sockel

• 4 x 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/ 4533/ 4600/ 4733/ 4800/ 4866/ 5000/ 5100+ MHz by A-XMP OC MODE
    • 1DPC 1R max speed 5100 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

• 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.

• 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

• 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

• Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices
• Supports RAID 0 and RAID 1 for M.2 NVMe storage devices

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

• 1x Realtek® RTL8125B 2.5Gbps LAN controller
• 1x Realtek® RTL8111H 1Gbps LAN controller

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

• 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
• 6x 4-pin system fan connectors
• 1x Front panel audio connector
• 2x System panel connectors
• 1x Chassis Intrusion connector
• 2x 4-pin RGB LED connectors
• 2x 3-pin RAINBOW LED connectors
• 1x TPM module connector
• 1x Clear CMOS jumper

1. PS/2 Combo Port
2. DisplayPort
3. 2.5G LAN Port
4. 1G LAN Port
5. HD Audio Connectors
6. Flash BIOS Button
7. USB 2.0 Port
8. HDMI Port
9. USB 3.2 Gen 1 5Gbps (Type-A)
10. USB 3.2 Gen 2 10Gbps (Type-A + Type-C)
11. Optical S/PDIF OUT