MSI MEG B550 UNIFY AMD Socket AM4 ATX Motherboard

£ 249.99  inc. vat

£ 208.32 ex. vat

MSI MEG B550 UNIFY AMD Socket AM4 ATX Motherboard

QuickFind: 1136499 Mfr part code: MEG B550 UNIFY
  • Socket AM4
  • 3000 and 5000 Series RYZEN
  • DDR4 Support
  • ATX Form Factor

Product Description

MSI MEG B550 UNIFY AMD Socket AM4 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 processors
•    Supports DDR4 Memory, Dual Channel 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 Optmized 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.

The MEG series seeks to transcend current gaming products, the flagship model designed to push the limits of what an extreme gaming series can be. Combining the strengths of our existing arsenal with new innovative technology; this results in significant improvements in operational and gaming efficiency. With the MEG series, take complete control of performance and personalization with the ultimate gaming series for enthusiasts who want it all.

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.

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

Technical Specification

MSI MEG B550 UNIFY AMD Socket AM4 ATX Motherboard


Max Allocated RAM Size 16 GB


Type HD Audio (8-channel)
Audio Codec Realtek ALC1220P
Compliant Standards High Definition Audio


Network Controller Realtek RTL8125B / Intel AX200
Network Interfaces 2.5 Gigabit Ethernet, 802.11a/b/g/n/ac/ax, Bluetooth 5.1

Expansion / Connectivity

Expansion Slots 1 x CPU ¦ 4 x DIMM 288-pin ¦ 1 x PCIe 4.0 x16 ¦ 1 x PCIe 3.0 x16 (x4 mode) ¦ 2 x PCIe 3.0 x1
Storage Interfaces SATA-600 -connectors: 6 x 7pin Serial ATA - RAID 0 / RAID 1 / RAID 10 ¦ SATA-600 / PCIe 4.0 -connectors: 2 x M.2 - RAID 0 / RAID 1 / RAID 10 ¦ PCIe 3.0 -connectors: 1 x M.2 - RAID 0 / RAID 1 / RAID 10 ¦ PCIe 4.0 -connectors: 1 x M.2 - RAID 0 / RAID 1 / RAID 10
Interfaces 1 x LAN (2.5Gigabit Ethernet) ¦ 1 x audio line-in - mini-jack ¦ 1 x audio line-out - mini-jack ¦ 1 x microphone - mini-jack ¦ 1 x TOSLINK ¦ 3 x USB 3.2 Gen 2 ¦ 1 x audio line-out (center/subwoofer) - mini-jack ¦ 1 x audio line-out (rear) - mini-jack ¦ 1 x USB-C Gen2 ¦ 1 x PS/2 keyboard / mouse ¦ 4 x USB 2.0 ¦ 1 x HDMI
Internal Interfaces 4 x USB 2.0 - header ¦ 2 x USB 3.2 Gen 1 - header ¦ 1 x USB-C Gen2 - header ¦ 1 x audio - header
Power Connectors 24-pin main power connector, 2 x 8-pin ATX12V connectors, 6-pin PCI Express power connector


BIOS Features MSI ClickBIOS 5
Hardware Monitoring CPU core temperature, chassis temperature, CPU fan tachometer, chassis fan tachometer
Hardware Features AMD CrossFireX technology support, Debug LED, 6 Layer PCB, MSI Mystic Light, MSI Steel Armor, Game Boost, Double ESD Protection, MSI Audio Boost 4, 2oz Copper PCB, pre-mounted I/O shield, MSI Core Boost, MSI PCIe Steel Slot, 14+2 Phase Power Design, double side M.2 Shield FROZR


Included Accessories External antenna, case badge, 1 to 2 RGB LED extension Y cable, CORSAIR RGB LED extension cable, Rainbow RGB LED extension cable, DIY stands set
Cables Included 2 x Serial ATA cable
Software Included Drivers & Utilities
Width 30.4 cm
Depth 24.4 cm


Product Type Motherboard - ATX
Chipset Type AMD B550 / Nuvoton NCT6687D-R
Processor Socket Socket AM4
Max Processors Qty 1
Compatible Processors Ryzen (supports Ryzen 5000 & 3000 series (not compatible with Ryzen 5 3400G & Ryzen 3 3200G) and Ryzen 4000 G-series)

Supported RAM

Max Size 128 GB
Technology DDR4
Bus Clock 2400 MHz, 1866 MHz, 2133 MHz, 2800 MHz, 3000 MHz, 2666 MHz, 2933 MHz, 3466 MHz (O.C.), 3733 MHz (O.C.), 3600 MHz (O.C.), 3866 MHz (O.C.), 4000 MHz (O.C.), 4133 MHz (O.C.), 4400 MHz (O.C.), 4266 MHz (O.C.), 4600 MHz (O.C.), 4533 MHz (O.C.), 4800 MHz (O.C.), 3200 MHz, 3066 MHz, 4733 MHz (O.C.), 5000 MHz (O.C.), 5100 MHz (O.C.), 5600 MHz (O.C.)
Supported RAM Integrity Check Non-ECC, ECC (operate in non-ECC mode)
Registered or Buffered Unbuffered
Features Dual channel memory architecture, supported ECC modules operate in non-ECC mode, A-XMP support

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MSI MEG B550 UNIFY AMD Socket AM4 ATX Motherboard


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MSI MEG B550 UNIFY AMD Socket AM4 ATX Motherboard


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£ 249.99  inc. vat

£ 208.32 ex. vat

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