Dark mode
United Kingdom
Catalog   /   Computing   /   Components   /   Motherboards   /   MSI

MSI MAG B550M MORTAR

Photos - Motherboard MSI MAG B550M MORTAR
Videos 10Photos 6
Expecting restock
£155.60 
One of MSI's most balanced mid-range gaming motherboards based on the 2020 AMD B550 chipset. It features small overall dimensions (microATX format), support for high-frequency DDR4 RAM modules (up to 4400 MHz) and an impressive maximum installed RAM volume (up to 128 GB). It is a compact and well-equipped motherboard from the MSI Arsenal Gaming family that fully supports AMD Ryzen 3000 processors with Matisse/Matisse Refresh cores (7nm) and Ryzen 4000 APUs (Renoir core, 7nm). It differs from its predecessor board (MSI B450M MORTAR) by supporting the PCI-E Gen 4.0 system interface, which allows you to double the data transfer speed with high-speed NVMe SSDs and the latest gaming graphics cards. The MSI MAG B550M MORTAR motherboard is positioned as a solid foundation for building multifuncti...onal home PCs, mid/high-end gaming configurations and workstations. Equipped with four DIMM slots. In addition to two fast NVMe SSDs (one with PCI-E Gen 4.0), it is capable of handling four SATA3 drives. The RTL8125B (2.5 Gbps) controller will help to organize ultra-fast traffic transmission in the LAN network. Audio output is provided by the Realtek ALC1200 8-channel HDA codec with optical output.
add to listmy lists
MSI MAG B550M MORTAR
Towards:gaming
Form Factor:micro-ATX
Socket:AMD AM4
Chipset:AMD B550
BIOS:Ami
RAM slots:DDR4 4 sl
RAM form factor:DIMM
RAM clock:4400 MHz
Sound (channels):7.1
Connectors:HDMI, M.2
Additional connectors:DisplayPort
Power connector:24 pin
Processor power:8 pin

One of MSI's most balanced mid-range gaming motherboards based on the 2020 AMD B550 chipset. It features small overall dimensions (microATX format), support for high-frequency DDR4 RAM modules (up to 4400 MHz) and an impressive maximum installed RAM volume (up to 128 GB). It is a compact and well-equipped motherboard from the MSI Arsenal Gaming family that fully supports AMD Ryzen 3000 processors with Matisse/Matisse Refresh cores (7nm) and Ryzen 4000 APUs (Renoir core, 7nm).

It differs from its predecessor board (MSI B450M MORTAR) by supporting the PCI-E Gen 4.0 system interface, which allows you to double the data transfer speed with high-speed NVMe SSDs and the latest gaming graphics cards. The MSI MAG B550M MORTAR motherboard is positioned as a solid foundation for building multifunctional home PCs, mid/high-end gaming configurations and workstations. Equipped with four DIMM slots. In addition to two fast NVMe SSDs (one with PCI-E Gen 4.0), it is capable of handling four SATA3 drives. The RTL8125B (2.5 Gbps) controller will help to organize ultra-fast traffic transmission in the LAN network. Audio output is provided by the Realtek ALC1200 8-channel HDA codec with optical output.

All specifications
Specifications MAG B550M MORTAR
Main
Featuresgaming for overclocking
SocketAMD AM4
Form factormicro-ATX
Power phases10
VRM heatsink
Size (HxW)244x244 mm
Chipset
ChipsetAMD B550
BIOSAmi
UEFI BIOS
RAM
DDR44 slot(s)
Memory moduleDIMM
Operation mode2 channel
Max. clock frequency4400 MHz
Max. memory128 GB
XMP
Drive interface
SATA 3 (6Gbps)6
M.2 connector2
M.21xSATA/PCI-E 4x, 1xPCI-E 4x
M.2 SSD cooling
Integrated RAID controller / RAID 0, RAID 1 and RAID 10 /
Expansion slots
1x PCI-E slots2
PCI-E 16x slots2
PCI Modes16x/4x
PCI Express4.0
CrossFire (AMD)
Steel PCI-E connectors / PCI-E 4.0 /
Internal connections
TPM connector
USB 2.02
USB 3.2 gen11
USB C 3.2 gen11
Video outputs
HDMI output
DisplayPort
Integrated audio
AudiochipRealtek ALC1200
Sound (channels)7.1
Optical S/P-DIF
Network interfaces
LAN (RJ-45)2.5 Gbps
LAN ports1
LAN controllerRealtek RTL8125B
External connections
USB 2.02
USB 3.2 gen12
USB 3.2 gen21
USB C 3.2 gen21
PS/21
Power connectors
Main power socket24 pin
CPU power8 pin
Fan power connectors5
Official Websitemsi.com
Added to E-Catalogmay 2020
Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
Catalog MSI 2025 - new products, best sales and most actual models MSI.
How to choose a motherboard?Motherboard is the main part of any computer. Here's how to choose the right one for work, play and entertainment
Video reviews
Filters
Models
MSI (features) 
HEDT (High-End DeskTop)