MSI MEG B550 UNIFY Review & Specs

MSI MEG B550 UNIFY AM4 ATX

MSI MEG B550 UNIFY AM4 ATX

- MSI

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AMD B550 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 AMD Ryzen 4000 G-Series processors support DDR4 5100+ (Max. 5600)/ 5000/ 4866/ 4800/ 4733/ 4600/ 4533/ 4400/ 4266/ 4133/ 4000/ 3866/ 3733/ 3600/ 3466/ 3200/ 3066/ 3000/ 2933/ 2800/ 2667 MHz by A-XMP OC MODE 3rd Gen AMD Ryzen processors supports DDR4 5100+/ 5000/ 4866/ 4800/ 4733/ 4600/ 4533/ 4400/ 4266/ 4133/ 4000/ 3866/ 3733/ 36

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Specs Overview

Model MEG B550 UNIFY
Release Date December 2020

* First availability for purchase, it may not correspond to the actual market launch date.

Socket AM4
Form factor ATX
Chipset AMD B550
Supported Memory DDR4:
1866Mhz 2133Mhz 2400Mhz 2666Mhz 2800Mhz 2933Mhz 3000Mhz 3200Mhz 3466Mhz 3600Mhz 3733Mhz 3866Mhz 4000Mhz 4133Mhz 4266Mhz 4400Mhz 4533Mhz 4600Mhz 4733Mhz 4866Mhz 5000Mhz 5100Mhz
* High clock speeds may require enabling the XMP profile in the motherboard BIOS
** RAM support may also depend on the CPU memory controller
ECC RAM Support
Audio Chipset Realtek ALC1220P Codec
Audio Channels 7.1-Channel High Definition Audio
Supports S/PDIF output
LAN Chipset Realtek RTL8125B
Max LAN Speed 10/100/1000/2500Mbps
SLI Support
CrossFire Support
RAID Support
Back I/O Ports
  • 1 x HDMI
  • 1 x LAN (RJ45)
  • 1 x Optical S/PDIF Out
  • 1 x PS/2 Keyboard/Mouse Combo
  • 1 x USB 3.2 Gen 2 Type-C
  • 3 x USB 3.2 Gen 2 Type-A
  • 4 x USB 2.0/1.1
  • 5 x Audio Jacks
Wireless LAN
Wi-Fi Generation 6
PCI-Express x16 Slots 2
PCI-Express x4 Slots 0
PCI-Express x1 Slots 2
SATA 6 Gbps Ports 6
SATA Express Ports 0
M.2 Ports 4
RAM Slots 4
Maximum Supported RAM 128GB
Onboard USB 2.0 2
Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 1


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