MSI MAG B550M Mortar AM4 Micro-ATX Motherboard

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Limited Stock
3-5 Days To Order
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MSI MAG B550M Mortar AM4 Micro-ATX Motherboard

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 processorse

Supports DDR4 Memory, up to 4400+(OC) MHz

Lightning Fast Game experience: PCIe 4.0, Lightning Gen 4 x4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 Gen 2

Premium Thermal Solution: Extended Heatsink Design with additional choke thermal pad rated for 7W/mk and PCB with 2oz thickened copper are built for high performance system and non-stop gaming experience.

Enhanced Power Design: 8+2+1 Duet Rail Power System, Digital PWM, Core Boost, DDR4 Boost.

2.5G LAN with LAN Manager: Upgraded network solution for professional and multimedia use. Delivers a secure, stable and fast network connection.

Pre-installed I/O Shielding: Better EMI protection and more convenience for installation.

Audio Boost: Reward your ears with studio grade sound quality for the most immersive gaming experience.

Multi-GPU: With Steel Armor PCI-E slots. Supports 2-Way AMD Crossfire™


Brand MSI
Series AMD B550 Motherboards
CPU Supports AM4 Socket 3rd Gen AMD Ryzen Processors, and Future AMD Ryzen Processors with BIOS Update
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 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
Expansion Slots 1x PCIe 4.0/ 3.0 x16 Slot (PCI_E1) *1
1x PCIe 3.0 x16 Slot (PCI_E3), Supports x4 Speed *2
2x PCIe 3.0 x1 Slots
On-Board Graphics 1x HDMI Port, Supports a Maximum Resolution of 4096×2160 @24Hz *3
1x DisplayPort, Supports a Maximum resolution of 4096×2160 @60Hz *3
Maximum Shared Memory of 2048MB
Multi-GPU Supports 2-Way AMD CrossFire Technology
Storage 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 *4
Supports SATA 6Gb/s
Supports 2242/ 2260/ 2280 Storage Devices
M2_2 Slot (from AMD B550 Chipset)
Supports PCIe 3.0×4
Supports 2242/ 2260/ 2280 Storage Devices
RAID 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:
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
Audio Realtek ALC1200 Codec:
7.1-Channel High Definition Audio
Supports S/PDIF Output
LAN 1x Realtek RTL8125B 2.5Gbps LAN Controller
Internal Connectors 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 Connector
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
Back Panel Ports 1x DisplayPort
PS/2 Combo Port
2.5G LAN Port
1x USB 3.2 Type-A Gen 2 (10Gbps)
5x HD Audio Connectors
1x HDMI Port
Flash BIOS Button
2x USB 2.0 Type-A
2x USB 3.2 Type-A Gen 1 (5Gbps)
1x USB 3.2 Type-C Gen 2 (10Gbps)
Optical S/PDIF OUT
Mounting Holes 8x Mounting Holes
Operating System Support Windows 10 64-bit
Form Factor Micro-ATX Form Factor
9.6 in. x 9.6 in. (24.4 cm x 24.4 cm)
Warranty Information
Warranty 3 Year Warranty