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Dark green micro-ATX board with silver heatsinks and black rear I/O shield

MSI

MSI MAG B650M MORTAR WIFI AMD motherboard

SKU CH-WWE4-4VTR9

Micro ATX board with AM5 socket and B650 chipset supports Ryzen 7000 and 8000 CPUs, up to 256GB DDR5 at 6600MHz, dual x16 PCIe slots, six SATA ports, 2.5Gbps LAN and WiFi

  • CPU Socket TypeSocket AM5
  • CPU TypeSupports AMD Ryzen™ 8000/ 7000 Series Desktop Processors Soc
  • ChipsetAMD B650
  • Memory StandardSupport dual-channel DDR5 6600 + (OC)/6400 (OC)/6200 (OC)/60
  • Maximum Memory Supported256GB
  • PCI Slots2X PCI-E x16 slots (quantity) Supports x16/x4 (For Ryzen™ 70
  • Socket AM5 supports Ryzen 7000 and 8000 series CPUs
  • Dual-channel DDR5 up to 6600 MHz with 256 GB capacity
  • 5 Gbps LAN plus Wi-Fi for fast networking
  • 1-channel audio with 32-bit 384 kHz playback
  • USB 20 Gbps Type-C plus multiple 10 Gbps and 5 Gbps ports

Socket AM5 DDR5 Platform

The MSI MAG B650M MORTAR WIFI is a Micro ATX motherboard built on the AMD B650 chipset for Socket AM5 processors. It supports AMD Ryzen 7000 and 8000 series desktop CPUs. The board provides dual-channel DDR5 memory support up to 256GB capacity. Integrated 2.5Gbps LAN and WiFi deliver modern connectivity.

256GB DDR5 Memory Limit

The maximum supported memory is 256GB across dual channels. Speeds range from 4800MHz up to 6600MHz with overclocking. This ceiling determines whether the board suits high-capacity workstations or typical gaming builds. Four DIMM slots allow flexible population for the chosen kit.

Builders Needing High-Capacity DDR5

This board suits users who need up to 256GB of DDR5 in a compact Micro ATX form factor. It provides extensive rear USB connectivity including 20Gbps Type-C. Builders requiring larger ATX layouts or different chipset features should consider other models.

Highlights

  • Socket AM5 supports Ryzen 7000 and 8000 series CPUs
  • Dual-channel DDR5 up to 6600 MHz with 256 GB capacity
  • 5 Gbps LAN plus Wi-Fi for fast networking
  • 1-channel audio with 32-bit 384 kHz playback
  • USB 20 Gbps Type-C plus multiple 10 Gbps and 5 Gbps ports

Specifications

BrandMSI
SeriesMSI MAG B650M MORTAR WIFI
ModelMSI MAG B650M MORTAR WIFI
CPU Socket TypeSocket AM5
CPU TypeSupports AMD Ryzen™ 8000/ 7000 Series Desktop Processors
Socket AM5
ChipsetAMD B650
Memory StandardSupport dual-channel DDR5 6600 + (OC)/6400 (OC)/6200 (OC)/6000 (OC)/5800 (OC)/5600 (OC)/5400 (OC)/5200 (OC)/5000 (OC)/4800MHz memory
Maximum Memory Supported256GB
PCI Slots2X PCI-E x16 slots (quantity)
Supports x16/x4 (For Ryzen™ 7000 Series processors)
Supports x8/x4 (For Ryzen™ 7 8700G and Ryzen™ 5 8600G processors)
Supports x4/x4 (For Ryzen™ 5 8500G processor)
1X PCI-E x1 slot (quantity)
PCI_E1 Gen PCIe 4.0 supports up to x16 (From CPU)
PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset)
PCI_E3 Gen PCIe 4.0 supports up to x4 (From Chipset)
SATA RAID2XM.2 interface, 6xSATA III interface
Audio ChipsetRealtek ALC4080 Codec
7.1-Channel High Performance Audio
Supports S/PDIF output
Supports up to 32-Bit/384 kHz playback on front panel
LAN ChipsetRealtek RTL8125B 2.5Gbps LAN
Onboard USB4X USB 2.0 (front)
4x USB 5Gbps Type A (Rear)
2x USB 5Gbps Type A (Front)
3x USB 10Gbps Type A (Rear)
1x USB 10Gbps Type C (Front)
1x USB 20Gbps Type C (Rear)

Questions about this item

How much DDR5 memory can this board actually run at once?

The board supports up to 256 GB of dual-channel DDR5 across its four slots.

What bandwidth does the rear 20 Gbps USB-C port provide in practice?

It delivers up to 20 Gbps transfer speed using the USB 20 Gbps Type-C interface on the rear I/O panel.

What case mounting pattern does this Micro ATX board use?

It uses the standard Micro ATX standoff layout and rear I/O cut-out.

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