Technical Snapshot

The MSI MAG B860M MORTAR is a Micro-ATX motherboard based on the B860 chipset for Intel LGA1851 processors. It supports DDR5 memory with up to 256 GB across 4 DIMM slots, 5G LAN LAN, and 3 M.2 slots.

Use Case
Desktop PC builds, gaming, workstation
Compatibility
Intel LGA1851 processors
Category
Micro-ATX Motherboard — B860 Chipset
MSI

MAG B860M MORTAR

B860 · Intel LGA1851 · Micro-ATX · DDR5 up to 256 GB

CPU socket: Intel LGA1851. Compatible with Intel Core desktop processors.
SocketIntel LGA1851
Maximum supported memory: 256 GB DDR5 across 4 DIMM slots.
Max RAM256 GB
B860 chipset with PCIe and M.2 expansion slots.
ChipsetB860
Micro-ATX form factor — compact build compatible.
Form FactorMicro-ATX
MPNMAG B860M MORTAR
CategoryMotherboards
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Connectivity & Expansion

PCIe x161
M.2 Slots3
SATA Ports4
LAN5G LAN
AudioRealtek® ALC897
ThunderboltTB4

Full Specifications

ChipsetB860
SocketIntel LGA1851
Form FactorMicro-ATX
Memory TypeDDR5
DIMM Slots4
Max RAM256 GB
PCIe x16 Slots1
M.2 Slots3
SATA Ports4
LAN5G LAN
AudioRealtek® ALC897
ThunderboltTB4
RGBYes
SeriesMAG

Support & Downloads

Latest Firmware & DriversVisit MSI for the latest updates
MSI Downloads →
MSI MAG B860M MORTAR DocumentationPDF · Installation guide and specifications
MSI Support →
← Back to MSI Motherboard Catalog

Frequently Asked Questions

What socket does the MSI MAG B860M MORTAR use?

The MSI MAG B860M MORTAR uses the Intel LGA1851 socket, compatible with Intel Core desktop processors.

How much RAM does the MSI MAG B860M MORTAR support?

The MSI MAG B860M MORTAR supports up to 256 GB of DDR5 memory across 4 DIMM slots.

Does the MSI MAG B860M MORTAR have Wi-Fi?

No, the MSI MAG B860M MORTAR does not include built-in Wi-Fi.

How many M.2 slots does the MSI MAG B860M MORTAR have?

The MSI MAG B860M MORTAR has 3 M.2 slots for NVMe SSD storage.

What chipset does the MSI MAG B860M MORTAR use?

The MSI MAG B860M MORTAR is built on the B860 chipset, offering Micro-ATX form factor design for Intel platforms.

JSON-LD Structured Data — Product + FAQ + Breadcrumb
Product: MSI MAG B860M MORTAR
MPN: MAG B860M MORTAR
Schemas: Product + BreadcrumbList + FAQPage
Properties: 14 additionalProperty entries