- 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 processors
- Supports DDR4 Memory, up to 5100+(OC) MHz
- Quadruple M.2 Connectors: Maximum onboard 4x M.2 slots, support the latest Gen 4 solution with up to 64GB/s bandwidth for maximum transfer speed.
- Extreme Power Design: Direct 14+2 phases with 90A Power Stage and dual CPU power connectors to unleash your true power.
- Premium Thermal Solution: Aluminum Cover 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.
- 2.5G LAN with LAN Manager and Intel® Wi-Fi 6 AX Solution: Upgraded network solution for professional and multimedia use. Delivers a secure, stable and fast network connection.
- Lightning Fast Game experience: PCIe 4.0, Lightning Gen 4 x4 M.2 with M.2 double-side Shield Frozr, AMD Turbo USB 3.2 GEN 2.
- Flash BIOS Button with Optimized ClearCMOS Function: Simply use a USB key to flash any BIOS within seconds. Restore the BIOS to the default settings without any additional actions.
- Pre-installed I/O Shield: Better EMI protection and more convenience for installation.
PREMIUM HARDWARE DESIGN
With years of experience, MSI is no stranger to building high-performance motherboards. Our R&D and engineering teams have reviewed countless designs, evaluated a wide selection of high quality components, and developed products for reliability even under extreme conditions.
THERMAL SOLUTION FOR MORE CORES AND HIGHER PERFORMANCE
With more cores' processors, thermal and power design is more important 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.
DOUBLE SIDE M.2 SHIELD FROZR
World’s fastest SSDs can start to lower performance when getting hot. Part of the motherboards heatsink design, double side 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.
FULLY CONTROLLABLE IN BIOS AND SOFTWARE
MSI motherboards let you manage speeds and temperatures for all your system and CPU fans. Total Fan Control allows you to check your primary system characteristics in a simplified graphical interface. You can also set up to 4 temperature targets for CPU and motherboard, which will adjust the fan speeds automatically.
OPTIMIZED FOR WATER COOLING
Designed to support the most popular All-In-One & customized water cooling solutions on the market. A dedicated water pump PIN header supports up to 3 amp, giving you full control of the water pump speed. A clearly marked ‘keep-out-zone’ allows for easy and safe installation and a perfect fit.
DIRECT 14+2 POWER PHASES DESIGN
Unleash and sustain maximum performance with an aggressive VRM design built with a total of direct 14+2 digital power phases. Combining dual power connectors and exclusive Core Boot technology, MEG series motherboard is ready for the challenge of high-end processors.
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 high-loading operation.
MSI Game Boost enables one-second overclocking, giving you the performance boost you need to get more FPS.
MORE FOR PERFORMANCE
- Load-line Calibration: What you set, is what you get. LLC makes sure your CPU voltage remains 100% stable under any load. This greatly improves stability when demanding more CPU performance.
- Overvoltage Protection: Prevents potential short-circuit damage to the CPU and other critical components.
- Digital Power Design: A fully digital power design allows for faster and undistorted current delivery to the CPU at pin-point precision. Creating the perfect conditions for CPU overclocking.
- Supplemental PCI-E Power Connector: The extra 6-pin PCI-E power connector provides dedicated power for PCI-E slots, augmenting the power provided by the 24-pin and the graphics card directly.
DIY STANDS SET
Unify series motherboard are aim to extreme power users, to provide the best user experience, the exclusive DIY Stands Set allow you to build a PC platform with ease. The DIY Stands Set even support fan installation with different scenario.
PRE-INSTALLED IO SHIELD
Featuring the pre-installed IO shield, makes your installation process easier and safer. The patent-pending design protect your IO ports and also prevent electrostatic discharge damage, makes your motherboard a strong gaming foundation.
FLASH BIOS BUTTON
Run into trouble when updating your BIOS or somehow corrupted it? Don't worry, MSI motherboards offer 2 easy to use options to successfully boot your system again.
KEEP OUT ZONE
MSI motherboards circuitry ensure the case standoff keep out zones are pure and clean, preventing any component contact or damage to the motherboard.
MORE USER FRIENDLY ENHANCEMENTS
- XL Clip: The enlarged PCI-E clip helps you swap or remove your devices easier. Keep the PCI-E slot stronger and safer.
- EZ Debug LED : Run into trouble? Onboard LEDs for key components will indicate the source of the problem so you know exactly where to look to get up and running again.
- Debug LED: Run into trouble? The digital LED display will display the startup sequence code so you know exactly where to look to get up and running again.
- EZ LED Control: A built-in LED button on the motherboard to control your light effect. Turn on/off your light in a second!
High performance MSI motherboards are loaded with advanced features and the latest technology to overwhelm any challenge at hand no matter whether you're a gamer, prosumer, or PC enthusiast.
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.
FAST AND FUTURE-READY STORAGE
MSI B550 motherboards support all the latest storage standards, which allows users to connect any ultra-fast storage device. Higher efficiency makes your work easier.
OPTIMIZED STORAGE DESIGN
MEG B550 UNIFY series motherboard features exclusive onboard quadruple M.2 connectors for the maximum storage performance. The Industry leading design maximizes bandwidth to fully utilize high-end storage devices, provides multiple configurations for demanding gamers and power users.
EXTREME STABILITY & COMPATIBILITY TESTING
MSI conducts thorough memory testing with the most popular memory brands under extreme conditions to ensure your system runs stable no matter what. Our memory partners include brands like Corsair, Crucial, Kingston, G.Skill and many more to optimize memory modules, configurations and even improve overclocking.
A HUGE STEP OF DDR PERFORMANCE
MSI OC LAB does not merely work hard on extreme overclocking. Compared to B450 motherboard memory A-XMP profile, MSI does have great improvement on performance and efficiency for B550 motherboards. Easy to enable A-XMP profile with auto power settings to get the best memory speed and stability.
EASY OVERCLOCKING WITH A-XMP PROFILE
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.
BIOS & SOFTWARE
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.
CLICK BIOS 5
Get more from a loaded BIOS designed for ease of use. Fine-tune the motherboard for gaming performance, efficiency, or overclocking world records!
MSI App Player
Developed under an exclusive partnership with BlueStacks, the MSI APP Player brings seamless gaming experience between mobile games and PC platform, and leverages customized features as specific keyboard lighting and better graphics with multi-task works.
MSI motherboards are built with a variety of connectors to satisfy gamers. Enhanced audio, advanced LAN networking capabilities, USB and Mystic Light turn any gaming experience into an immerse one.
HIGH-BANDWIDTH AND LOW-LATENCY NETWORK
2.5Gbps LAN provides incredible data transfer speed faster than general Gigabit LAN. This is a premium solution for demanding users.
SURFACING WITH THE REAL MU-MIMO TECHNOLOGY
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. Comparing to the WIFI 5, which can only send the data packet to one device at a time on each channel, the WIFI 6 could combine the packet, separate to several devices and allow signals from the different devices bundled together. This new technology provides all the devices in the same network environment with same and harmonious traffic bandwidth in an efficient way.
OPTIMIZE ONLINE GAMING TRAFFIC FOR LOWER LATENCY!
MSI LAN Manager automatically classifies and prioritizes the latency-sensitive applications for online games, giving you the best online gaming experience with low latency.
BOOST YOUR GAME EXPERIENCE WITH USB 3.2 GEN 2
Read and write your files over USB faster than ever. MSI MEG series motherboards offer a wide variety of options to connect and boost your USB devices, delivering 10Gbps transferring speed by both USB 3.2 Gen 2 Type-A and Type-C™.
USB FRONT TYPE-C
MSI gaming motherboards support USB Front Type-C™ that allows gamers to connect with the latest USB devices. Built up a system with MSI PC case to have the most convenient experience.
AUDIO BOOST 4
HIGH DEFINITION ALC1220 AUDIO PROCESSOR - Supports DSD Super Audio CD playback & recording (64x better than regular CD quality).
HIGH QUALITY AUDIO CAPACITORS - A high fidelity sound experience with exceptional acoustics and realism for studio level headphones is ensured.
GOLDEN AUDIO JACKS WITH S/PDIF - Keep your sound perfect by transmit your audio with pure digital signal.
GET CLEARER ORDER WITH VOICE BOOST
Hear your teammates perfectly but still enjoy your audio. Voice Boost automatically reduces the game’s audio when teammates speak, and sets volume back when no one speaks.
ISOLATED AUDIO SIGNAL
Like a dedicated sound card, audio components and circuits have been laid on a reserved motherboard section and electrically isolated.
Using separated layers in the PCB ensures equally pristine sound quality for both left and right audio channels.
Audio Boost protects your ears by eliminating those annoying loud popping sounds when you plug/unplug devices or turn your PC on/off.
Operating System Support:
- Windows® 10, 64-bit
|Make and Model||MSI MEG B550 UNIFY ATX Motherboard|
|CPU Support||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 processors *
* See supported processors
|Memory||4 x DDR4 slots, support up to 128GB
Supports un-buffered memory
Supports non-ECC UDIMM memory
Supports ECC UDIMM memory (non-ECC mode)
1. Please refer www.msi.com for more information on compatible memory.
See supported memory
AMD B550 Chipset:
|Multi-GPU Support||Supports 2-Way AMD® CrossFire™ Technology|
|Onboard Graphics||1 x HDMI 2.1 port, supporting a maximum resolution of 4096x2160 @120 Hz
Maximum shared memory of 16GB.
|Storage||6x SATA 6Gb/s ports
4x M.2 slots (Key M)
M2_1 slot: Supports PCIe 4.0/ 3.0 x4 and supports 2280/ 22110 storage devices
|RAID||Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices
Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices
AMD B550 Chipset:
AMD B550 chipset + USB 2.0 Hubs:
|LAN||1x Realtek® RTL8125B 2.5Gbps LAN controller|
|Wireless Communication||Intel® Wi-Fi 6 AX200:
|Audio||Realtek® ALC1220P Codec
7.1-Channel High Definition Audio
Supports S/PDIF output
|Back Panel I/O||2x USB 2.0
1x USB 3.2 Gen 2 10Gbps (Type-A+C)
2x USB 3.2 Gen 2 10Gbps (Type-A)
1x HDMI 2.1 port
2x Mini DisplayPort Input (for Thunderbolt passthrough)
1x 2.5G LAN
2x Wi-Fi / Bluetooth
1 x Keyboard/Mouse PS/2 port
5x HD Audio connectors
1x Optical S/PDIF-Out
1 x Clear CMOS button
1x Flash BIOS button
|Internal I/O Connectors||1x 24-pin ATX main power connector
2x 8-pin ATX 12V power connector
1x 6-pin PCIE power connector
6x SATA 6Gb/s connectors
4x M.2 slots (M-Key)
1x USB 3.2 Gen 2 10Gbps 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
1x 4-pin RGB LED connectors
2x 3-pin RAINBOW LED connectors
1x 3-pin CORSAIR LED connector
1x TPM module connector
1x Clear CMOS jumper
1x Power button
1x Reset button
|Operating System||Supports Windows® 10 64-bit|
|I/O Controller||NUVOTON NCT6687D-R Controller Chip|
|Form Factor||ATX Form Factor|
|Dimensions (LxW)||30.4 x 24.4 cm (12" x 9.6")|