MSI MAG B550M MORTAR WIFI M-ATX AMD AM4 Motherboard with Gen 4 M.2 and 2.5G LAN
MSI MAG B550M MORTAR WIFI M-ATX AMD AM4 Motherboard with Gen 4 M.2 and 2.5G LAN
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Product Description:
- The MSI MAG B550M MORTAR WIFI Motherboard supports AM4 socket 3rd Gen AMD Ryzen processors, and future AMD Ryzen processors with BIOS update. Combining MSI Core Boost, you can release maximum performance no matter what CPU you use. MSI MAG series motherboards are designed to satisfy any gamers.
- The board supports DDR4 memory up to 128GB and speed of 4400+ MHz. Expand your connectivity with 1x PCIe 3.0/ 4.0 x16 slot, 1x PCIe 3.0 x16 slot, 2x PCIe 3.0 x1 slots, 1 x USB 3.2 Gen1 Type-C port speed up to 5Gbps, 1x USB 3.2 Gen 1 and 2 x USB 2.0 ports and an excellent audio experience for your entertainment with 7.1 HD Audio Boost.
- MSI extended PWM heatsink and enhanced circuit design ensures even high-end CPU to run in full speed with MSI motherboards. M.2 SHIELD FROZR is the next generation M.2 thermal solution to avoid this by offering the best thermal protection to make sure that SSD maintains maximum performance.
- MSI DDR4 Boost ensures that you have smooth and optimized gameplay which devoid crashing. With Optimized layout design and a fully isolated memory circuitry the board ensures perfect stability and performance. The Audio Boost Technology Reward your ears with studio grade sound quality for the most immersive audio experience.
- An enhanced PCB design with 2oz thickened copper increases conductivity, improving heat dissipation and performance reliability especially during overclocking. Double ESD protection doubles up the grounding layer around the mounting holes, preventing static discharge surges from damaging the motherboard.
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Conquer the Battlefield
The MAG series was born through rigorous quality testing and designed to be a symbol of sturdiness and durability. Focused on providing the best user experience, the MAG series has a simple installation process coupled with a friendly user interface making it the best choice for entry level gamers.

M.2 Shield Frozr
Part of the motherboards heatsink design, M.2 SHIELD FROZR is the next generation M.2 thermal solution to avoid this by offering the best thermal protection to make sure that SSD maintains maximum performance.

Extended Heatsink
With more cores’ processors, thermal and power design is to make sure the temperature keeps lower. MSI extended PWM heatsink and enhanced circuit design ensures even high-end CPU to run in full speed with MSI motherboards.

WIFI 6
The WIFI 6 adopts the latest OFDMA and two-way MU-MIMO technologies and could provide up to 4X network capacity and efficiency in the high signal density environment.

Lightning Gen 4 M.2
Utilizing 3rd Gen Ryzen processors, MSI B550 motherboards feature latest Lightning Gen 4 M.2 which is the fastest onboard storage solution on the market with up to 64 Gb/s transfer speed.

DDR4 Boost
MSI conducts thorough memory testing with the most popular memory brands under extreme conditions to ensure your system runs stable no matter what.

Pre-installed IO shielding
Featuring the pre-installed IO shielding, makes your installation process easier and safer. The patent-pending design protect your IO ports and also prevent electrostatic discharge damage.

Easy Overclocking
The A-XMP in MSI BIOS are tested and certified by MSI OC LAB. It is easy to enable with auto power settings to get the best memory speed and stability.

2.5G LAN
2.5Gbps LAN provides incredible data transfer speed faster than general Gigabit LAN. This is a premium solution for demanding users.

Core Boost
Core Boost technology combines MSI’s premium layout and digital power design which allows for faster and undistorted current delivery to the CPU at pin-point precision. This creates the perfect conditions for multi-core CPU while doing

Click BIOS
Get more from a loaded BIOS designed for ease of use. Fine-tune the motherboard for gaming performance, efficiency, or overclocking world records.

Dragon Center
MSI brand new Dragon Center unifies a suite of MSI software utilities into a single centralized application. Take control of advanced motherboards features and unleash endless possibilities.
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Model | MAG B550M MORTAR WIFI |
CPU Socket | AMD Socket AM4 |
CPU Support | Supports AM4 socket 3rd Gen AMD Ryzen Processors and future AMD Ryzen processors with BIOS update |
Chipset | AMD B550 Chipset |
Form Factor | Micro-ATX |
Memory | 2x DDR4 memory slots, support up to 128GB |
On-Board Graphics support | 1x HDMI 2.1 port, supports a maximum resolution of 4096x2160 at 60Hz 1x DisplayPort, supports a maximum resolution of 4096x2160 at 60Hz |
Expansion Slot | 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 |
LAN | 1x Realtek RTL8125B 2.5Gbps LAN controller |
Wireless / Bluetooth | Intel Wi-Fi AX200 The Wireless module is pre-installed in the M.2 (Key-E) slot Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz (160MHz) up to 2.4Gbps Supports 802.11 a/ b/ g/ n/ ac/ ax Supports Bluetooth 5.1 |
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 Supports SATA 6Gb/s Supports 2260/ 2280 storage devices M2_2 slot (from AMD B550 chipset) Supports PCIe 3.0x4 Supports 2242, 2260, 2280 storage devices |
Audio | Realtek ALC1200 Codec 7.1-Channel High Definition Audio Supports S/PDIF output |
USB Ports | 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, 2 ports through the internal USB 2.0 connector) 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 |
Internal Connectors | 1x 24-pin Mini-ITX main power connector 1x 8-pin Mini-ITX 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 connector (supports additional 4 USB 2.0 ports) 1x 4-pin CPU fan connector |
Dimension | 24.4 cm x 24.4 cm |
Warranty | 3 Years |
Package Contents | MSI MAG B550M MORTAR WIFI User Manual Quick Intallation Guide MSI Case Badage Product Registration Card MSI Product Catalog Driver DVD 2 x SATA Cables Promotion Card |




