MSI MAG B860M MORTAR WIFI

  • Support Intel® Core™ Ultra Processors (Series 2) for LGA 1851 socket
  • Supports DDR5 Memory, Dual Channel DDR5 9200+ MT/s (OC)
  • Ultra Performance: 12+1+1+1 Duet Rail Power System 60A DrMOS, dual 8-pin CPU power connectors, Core Boost, Memory Boost, 6-layer PCB made by 2oz thickened copper and server-grade level material
  • Frozr Guard: Extended Heatsink, MOSFET thermal pads rated for 7W/mK, additional choke thermal pads and EZ M.2 Shield Frozr II are built for high performance system and non-stop experience
  • EZ DIY: EZ PCIe Release, EZ M.2 Shield Frozr II, EZ M.2 Clip II and EZ Antenna
  • Lightning Fast Game experience: PCIe 5.0 slot, Lightning Gen 5 x4 M.2
  • Audio Boost: Reward your ears with studio grade sound quality for the most immersive gaming experience
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Specification Details
Chipset Intel B860
CPU Supports Intel Core Ultra Processors (Series 2)
Socket LGA 1851
Memory
Configuration 4x DDR5 UDIMM, Maximum Memory Capacity 256GB
Memory Support DDR5 9200 – 6400 (OC) MT/s / 6400 – 4800 (JEDEC) MT/s
Max Overclocking Frequency 1DPC 1R: Up to 9200+ MT/s
1DPC 2R: Up to 7200+ MT/s
2DPC 1R: Up to 6400+ MT/s
2DPC 2R: Up to 5600+ MT/s
Features Supports Intel POR Speed and JEDEC Speed
Supports Memory Overclocking and Intel XMP 3.0
Supports Dual-Controller Dual-Channel Mode
Supports Non-ECC, Un-buffered Memory
Supports CUDIMM
Notes The DIMM slots on this motherboard only have single-sided latches.
Memory compatibility and supported speed may vary depending on CPU and memory configuration.
For details, refer to the Memory Compatibility List at MSI Support.
Onboard Graphics
Ports 1x HDMI
Supports HDMI 2.1 with FRL, maximum resolution 8K 60Hz*
1x DisplayPort
Supports DisplayPort 1.4, maximum resolution 4K 60Hz*
1x Type-C DisplayPort
Thunderbolt 4 ports supporting DisplayPort 2.1 (UHBR20) over USB Type-C, maximum resolution 4K@120Hz / 8K@60Hz*
*Available only on processors featuring integrated graphics.
**Graphics specifications may vary by CPU.
Expansion Slots
Slots 1x PCI-E x16 Slot
1x PCI-E x4 Slot
PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU)
PCI_E2 Gen PCIe 4.0 supports up to x4 (From Chipset)
Notes * PCI_E3 slot will run at x2 speed when installing a PCIe device in PCI_E2 slot.
Audio
Codec Realtek ALC897 Codec
Channels 7.1-Channel High Definition Audio
Supports S/PDIF Output
Storage
Configuration 3x M.2
M.2_1 (From CPU): PCIe 5.0 x4, supports 2280/2260/2242 devices
M.2_2 (From Chipset): PCIe 4.0 x4, supports 2280/2260 devices
M.2_3 (From Chipset): PCIe 4.0 x4, supports 2280/2260 devices
4x SATA 6G
Notes * Refer to the manual for M.2 SSD heatsink restrictions.
RAID
Support Supports RAID 0, RAID 1, RAID 5, and RAID 10 for SATA Storage Devices
Onboard Thunderbolt
Resource CPU
Ports 1x Thunderbolt 4 Port (Rear)
Performance Up to 40Gbps transfer rate with Thunderbolt devices
Up to 20Gbps with USB4 devices
Up to 10Gbps with USB 3.2 devices
Supports 5V/3A (15W) power charging
Each port daisy-chains up to three Thunderbolt 4 or five Thunderbolt 3 devices
Supports up to 8K display output
USB
Configuration 4x USB 2.0 (Rear)
4x USB 2.0 (Front)
2x USB 5Gbps Type-A (Front)
3x USB 10Gbps Type-A (Rear)
1x USB 10Gbps Type-C (Rear)
1x USB 10Gbps Type-C (Front)
LAN
Port Intel Killer E5000 5Gbps LAN
Internal I/O
Connectors 1x Thunderbolt 5 Card Connector (JTBT5, supports RTD3)
1x ATX Power (ATX_PWR)
2x CPU Power (CPU_PWR)
1x PCIe Power (8-pin)
1x CPU Fan
1x Combo Fan (Pump_Sys Fan)
4x System Fans
1x EZ Conn Header (JAF_1)
2x Front Panels (JFP)
1x Chassis Intrusion (JCI)
1x Front Audio (JAUD)
1x Tuning Controller Connector (JDASH)
3x Addressable V2 RGB (JARGB_V2)
1x RGB LED (JRGB)
1x TPM Header (Supports TPM 2.0)
4x USB 2.0 Ports
2x USB 5Gbps Type-A Ports
1x USB 10Gbps Type-C Port
Wireless LAN & Bluetooth
Type Intel Killer BE1750x Wi-Fi 7
Module Pre-installed in the M.2 (Key-E) Slot
Performance Supports MU-MIMO TX/RX, 2.4GHz / 5GHz / 6GHz* (320MHz) up to 5.8Gbps
Supports 802.11 a / b / g / n / ac / ax / be
Supports Bluetooth 5.4**, MLO, 4KQAM
Notes * 6GHz band support may depend on country regulations; Wi-Fi 7 functionality is enabled in Windows 11 SV3.
** Bluetooth 5.4 support availability depends on the Windows 11 update plan; refer to Intel chipset vendor website for details.
LED Features
Indicators 4x EZ Debug LED
1x EZ Memory Detection LED
Back Panel Ports
Configuration

  1. DisplayPort
  2. USB 2.0
  3. USB 10Gbps Type-A
  4. 5G LAN
  5. Wi-Fi / Bluetooth
  6. Audio Connectors
  7. HDMI
  8. Thunderbolt 4 40Gbps (Type-C)
  9. Flash BIOS Button
  10. Clear CMOS Button
  11. USB 10Gbps Type-C
  12. USB 10Gbps Type-A
  13. S/PDIF Out
Operating System
Support Windows 11 64-bit
Box Content
INCLUDES
PCB INFO
mATX
243.84mmx243.84mm

Overview

MSI MAG B860M MORTAR WIFI

The MSI MAG B860M MORTAR WIFI is a high-performance micro-ATX motherboard designed for Intel® Core™ Ultra Processors (Series 2) with the latest LGA 1851 socket. Built to deliver exceptional speed and stability, it supports dual-channel DDR5 memory with speeds of up to 9200+ MT/s (OC), ensuring next-level responsiveness for gaming and multitasking. Featuring a robust 12+1+1+1 Duet Rail Power System with 60A DrMOS, dual 8-pin CPU power connectors, and MSI’s exclusive Core Boost and Memory Boost technologies, this board ensures smooth and stable power delivery even under extreme loads.

To maintain peak thermal efficiency, the Frozr Guard design incorporates an extended heatsink, 7W/mK MOSFET thermal pads, additional choke pads, and the EZ M.2 Shield Frozr II for optimal cooling during heavy use. The EZ DIY features—including EZ PCIe Release, EZ M.2 Clip II, and EZ Antenna—make installation effortless and user-friendly. With support for PCIe 5.0 and Lightning Gen 5 x4 M.2, users can experience ultra-fast data transfer speeds and enhanced game performance. The MSI MAG B860M MORTAR WIFI is the perfect blend of power, stability, and convenience, built for gamers and creators who demand reliability and performance in a compact form factor.

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