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MSI MAG B550M MORTAR WIFI Picture 62969MSI MAG B550M MORTAR WIFI Picture 62970MSI MAG B550M MORTAR WIFI Picture 62971MSI MAG B550M MORTAR WIFI Picture 62973MSI MAG B550M MORTAR WIFI Picture 62972
The MSI MPG B550M Mortar WiFi is a Micro ATX motherboard for AMD's 3rd Gen Ryzen processors. It sacrifices some of the expansion capacity that a larger motherboard can offer, but still supports up to 128GB of DDR4 memory and multiple SATA and M.2 drives.

For external connectivity, it also has both analog and digital audio outputs, 2.5Gb Ethernet, WiFi 6, Bluetooth, six USB ports of varying speeds (including one Type C), and even a legacy PS/2 port.
William George (Product Development)
William George (Product Development) Says:
A couple of oddities about this board are worth noting, but shouldn't impact most users:

- The HDMI and DisplayPort connections on this motherboard are for CPUs with built-in graphics, but the higher-end Ryzen chips we carry don't support that feature (since almost everyone uses a dedicated video card)

- If a second M.2 drive is installed, it will disable the bottom PCI-Express x4 slot

- The onboard NIC does not support Linux, so users of that OS will want to have a dedicated network card added

Note: This board has one Gen4 M.2 slot and one Gen3 M.2 slot for NVMe SSDs. Putting a Gen4 M.2 drive in the Gen3 slot will result in Gen3 speed. Also, populating both M.2 slots will disable the bottom PCIe slot. Please talk to a consultant if you have additional questions.


Socket  AM4
CPU Compatibility  AMD Ryzen
Form Factor  MicroATX
Chipset Manufacturer  AMD
Chipset  B550
Network Connectivity  2.5G Networking + WiFi 6
Network Controller  Realtek RTL8125B + Intel AX200
Audio Controller  Onboard Realtek ALC S1200A HD Audio
Cooling System  Heatsink
Color  Black
Memory Support
Type  DDR4 ECC
Maximum Speed  3200 MHz
Number of Slots  4
Maximum Size per Slot  32 GB
Maximum Amount Supported  128 GB
Onboard Video
Chipset Manufacturer  AMD
HDMI Version  2.1
DisplayPort  1
DisplayPort Version  1.2
Notes:  Onboard Graphics Requires Supported CPU
External Connections
USB 2.0  2
USB 3.2 Gen 1 (USB 3.0)  2
USB 3.2 Gen 2 (USB 3.1)  1
USB 3.2 Type C  1
Audio Out  Surround Sound (7.1)
Audio In  Line-In/Microphone
S/PDIF  Optical
LAN (RJ45)  1
Wireless Antenna Port  Yes
Internal Connections
USB 2.0  2 (providing 4 ports)
USB 3.2 Gen 1 (USB 3.0)  1
USB 3.2 Gen 1 Type C  1
SATA III 6.0Gbps  6
M.2 Connector  2
M.2 Support  x1 42-80mm NVMe (Gen4) + SATA, x1 42-80mm NVMe (Gen3)
TPM (module sold separately)  1
Compatible TPM  MSI 604-4462-010
SATA Controllers
SATA III 6.0Gbps Controller 1  AMD B550
Expansion Slots
Slot 1  PCI Express 4.0 x16
Slot 2  PCI Express 3.0 x1
Slot 3  PCI Express 3.0 x1
Slot 4  PCI Express 3.0 x4 in a x16 size
Additional Information
SLI Compatible  No
Crossfire Compatible  Yes
RAID Support  0,1,10
Bluetooth  Yes (5.0)
Integrated IO Shield  Yes
BIOS Features
EZ Flash  Yes
OC Profiles  Yes
Height  244 mm (9.6 in)
Width  244 mm (9.6 in)
Net Weight  0.982 kg (2.2 lbs)

Configure a custom computer with the MSI MAG B550M MORTAR WIFI.