MSI MAG B860M MORTAR WIFI

B860 · LGA1851 (Socket V1) · ATX · DDR5

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Chipset B860
Form factor ATX
Memory slots 4
Max memory 256 GB
Socket LGA1851 (Socket V1)
Memory type DDR5

MSI MAG B860M MORTAR WIFI is an ATX and B860 chipset motherboard for LGA1851 (Socket V1) processors and DDR5 memory. It came out in 2025.

Released: 2025-02-07
Socket: LGA1851 (Socket V1)

Specifications

Key specs

Chipset: B860
Form factor: ATX
Memory slots: 4
Max memory: 256 GB
Socket: LGA1851 (Socket V1)
Memory type: DDR5
Released: 2025-02-07
Part number: MAG B860M MORTAR WIFI

Processor

Processor manufacturer: Intel
Processor socket: LGA 1851 (Socket V1)
Compatible processor series: Intel Core Ultra (Series 2)
Supported processor sockets: LGA 1851

Memory

Supported memory types: DDR5-SDRAM
Number of memory slots: 4
Memory slots type: DIMM
Memory channels: Dual-channel
ECC сompatibility: Non-ECC
Supported memory clock speeds: 5600,6400,7200,9200 MHz
Supported memory clock speed (max): 9200 MHz
Maximum internal memory: 256 GB

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Storage controllers

Supported storage drive types: HDD & SSD
Supported storage drive interfaces: M.2, Micro SATA III
Number of HDDs supported: 4
Number of storage drives supported: 7
RAID support: Yes
RAID levels: 0, 1, 5, 10

Internal I/O

USB 2.0 connectors: 4
USB 3.2 Gen 1 (3.1 Gen 1) connectors: 2
USB 3.2 Gen 2 (3.1 Gen 2) connectors: 1
Number of SATA III connectors: 4
Total number of SATA connectors: 4
CPU fan connector: Yes
Number of CPU fan connectors: 1
Number of water pump connectors: 1
RGB LED pin header: Yes
Number of RGB LED pin headers: 3

Rear panel I/O ports

USB 2.0 ports quantity: 4
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity: 3
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity: 1
Ethernet LAN (RJ-45) ports: 1
HDMI ports quantity: 1
HDMI version: 2.1

Network

Ethernet LAN: Yes
Ethernet interface type: 5 Gigabit Ethernet
Wi-Fi: Yes
Top Wi-Fi standard: Wi-Fi 7 (802.11be)
Wi-Fi standards: 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax), Wi-Fi 7 (802.11be)
WLAN controller model: Killer Wi-Fi 7 1750x
Bluetooth: Yes
Bluetooth version: 5.4

Features

Motherboard chipset: Intel B860
Audio chip: Realtek ALC897
Audio output channels: 7.1 channels
Product colour: Black
Component for: PC
Motherboard form factor: ATX
Motherboard chipset family: AMD
Windows operating systems supported: Windows 11 x64

Expansion slots

PCI Express x1 slots: 1
PCI Express x16 (Gen 4.x) slots: 1
PCI Express x16 (Gen 5.x) slots: 1
Number of M.2 (M) slots: 3
1st M.2 largest key size: 2280
1st M.2 highest PCI Express generation: 5.0
2nd M.2 largest key size: 2280
2nd M.2 highest PCI Express generation: 4.0
3rd M.2 largest key size: 2280
3rd M.2 highest PCI Express generation: 4.0

BIOS

BIOS type: UEFI AMI
BIOS memory size: 256 Mbit
ACPI version: 6.5
System Management BIOS (SMBIOS) version: 3.7

Weight & dimensions

Width: 243.8 mm
Depth: 243.8 mm

Technical details

Legal guarantee: 3 year(s)

Check the manufacturer's page before buying.

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Compatible processors

LGA1851 (Socket V1) socket

None in the catalog yet.

Compatible memory

DDR5

Kingston FURY Beast 32GB (2x16) DDR5-6000 CL3632 GB (2x16) · DDR5
ADATA XPG Lancer RGB 32GB (2x16) DDR5-6000 CL3032 GB (2x16) · DDR5
Klevv Urbane V RGB32 GB (2x16) · DDR5
Klevv 32GB (2X16GB) 6000MHz CL28 DDR5 GAMING RAM MODULE 28-36-36-76 1.4V CRAS V RGB WHITE KIT32 GB (2x16) · DDR5
Klevv Bolt V32 GB (2x16) · DDR5
Klevv Fit V16 GB (1x16) · DDR5
Kingston 16GB 5600MT/s DDR5 CL40 DIMM FURY Beast White XMP16 GB (1x16) · DDR5
VeloxStor 7011-DDR, 16 GB, DDR5, 4800 MT/s, 288-pin UDIMM16 GB (1x16) · DDR5

About this product

MAG B860M MORTAR WIFI is designed for gamers with a stable, durable and DIY friendly foundation for their PC builds. Coming up with Killer Wi-Fi 7 solution and 5G LAN, Thunderbolt 4, PCIe 5.0 solutions, Supplemental PCIe Power and exclusive EZ DIY features, it's ready for the battlefied of Intel Core Ultra processors. MSI's mainstream MAG series epitomizes stability and durability and is built to withstand the most intense gaming sessions. The entire lineup features robust construction with metallic-like hardness and excellent heat dissipation, ensuring stability for all critical gaming components. MSI motherboards are designed with advanced hardware and technology, well-supporting the demanding computing usage of gaming and AI. Moreover, we also introduce AI to MSI Center and BIOS, making everything more effortless than before. 12+1+1+1 Duet Rail Power System Unleash and sustain maximum performance with an aggressive VRM design built with digital CPU power system. Combining 8 + 8-pin power connectors and exclusive Core Boost technology, MAG series motherboard is ready to sustain heavy gaming loadings.

User manual (PDF) · Datasheet (PDF)

MAG B860M MORTAR WIFI vs similar motherboards

	MSI MAG B860M MORTAR WIFI	MSI B860 GAMING PLUS WIFI	MSI MAG B860 TOMAHAWK WIFI	MSI PRO B860-P
Chipset	B860	B860	B860	B860
Form factor	ATX	ATX	ATX	ATX
Memory slots	4	4	4	4
Max memory	256 GB	256 GB	256 GB	256 GB
Socket	LGA1851 (Socket V1)	LGA1851 (Socket V1)	LGA1851 (Socket V1)	LGA1851 (Socket V1)
Memory type	DDR5	DDR5	DDR5	DDR5
Released	2025	2024	2024	2024