MSI

MSI MAG B860 TOMAHAWK WIFI Gaming Desktop Motherboard - Intel B860 Chipset - Socket LGA-1851 - ATX (b860tomahawkwifi)

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SKU:
20984940
MPN:
b860tomahawkwifi
Availability:
Usually ships the same or next business day.
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Stock Update:
04/15/2026 11:10:25 PM PST
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$262.51
Stock Update:
04/15/2026 11:10:25 PM PST

Description



This item is brand-new, factory sealed.

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 SPS, 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

Fast Game experience: PCIe 5.0 slot, Gen 5 x4 M.2

Ultra Connect: Thunderbolt 4 port, Intel Killer 5G LAN & Intel Killer Wi-Fi 7 Solution - the latest solution for professional and multimedia use, delivering secure, stable, and high-speed networking and data transmission

Audio Boost : Reward your ears with studio grade sound quality for the most immersive gaming experience Chipset
INTEL B860 CPU
Supports Intel CoreTM Ultra Processors (Series 2)
LGA 1851 Memory
4x DDR5 UDIMM, Maximum Memory Capacity 256GB
Memory Support 9200 - 6400 (OC) MT/s / 6400 - 4800 (JEDEC) MT/s
Max. overclocking frequency:
1DPC 1R Max speed up to 9200+ MT/s
1DPC 2R Max speed up to 7200+ MT/s
2DPC 1R Max speed up to 6400+ MT/s
2DPC 2R Max speed up to 5600+ MT/s
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
The DIMM slots on this motherboard only have single-sided latches.
Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the products Support page or visit https://www.msi.com/support/. Onboard Graphics
1x HDMITM
Support HDMITM 2.1 with FRL, maximum resolution of 8K 60HzNote1/ Note2
1x DisplayPort
Support DisplayPort 1.4, maximum resolution of 4K 60HzNote1/ Note2
1x Type-C DisplayPort
ThunderboltTM 4 ports, supporting DisplayPort 2.1 with UHBR20 over USB Type-C, with a maximum resolution of 4K at 120Hz / 8K at 60HzNote1
Note1: Available only on processors featuring integrated graphics.
Note2: Graphics specifications may vary depending on the CPU installed. Slot
2x PCI-E x16 slot
1x PCI-E x1 slot
PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU)
PCI_E2 Gen PCIe 4.0 supports up to x1 (From Chipset)
PCI_E3 Gen PCIe 4.0 supports up to x4 (From Chipset)
Note: PCI_E3 slot will run at x2 speed when installing PCIe device in PCI_E2 slot. Audio
Realtek ALC897 Codec
7.1-Channel High Definition Audio
Supports S/PDIF output Storage
3x M.2
M.2_1 Source (From CPU) supports up to PCIe 5.0 x4 , supports 2280/2260 devices
M.2_2 Source (From Chipset) supports up to PCIe 4.0 x4 , supports 22110/2280/2260 devices
M.2_3 Source (From Chipset) supports up to PCIe 4.0 x4 , supports 2280/2260/2242 devices
4x SATA 6G
Note1: If you install a 22110 SSD into the M2_2 slot, the M2_3 slot will only support 2242/ 2260 SSD.
Note2: Please refer to the manual for M.2 SSD heatsink restrictions. RAID
Supports RAID 0, RAID 1, RAID 5 and RAID 10 for SATA storage devices Onboard Thunderbolt
Thunderbolt Resource CPU
1x Thunderbolt4 ports (Rear)
Supports up to 40Gbps transfer rate with Thunderbolt devices
Supports up to 20Gbps transfer rate with USB4 devices
Supports up to 10Gbps transfer rate with USB 3.2 devices
Supports up to 5V/3A,15W power charging
Each port can daisy-chain up to three Thunderbolt 4 devices or five Thunderbolt 3 devices
Supports up to 8K display USB
4x USB 2.0 (Rear)
4x USB 2.0 (Front)
2x USB 5Gbps Type A (Front)
4x USB 10Gbps Type A (Rear)
1x USB 10Gbps Type C (Rear)
1x USB 10Gbps Type C (Front)
1x USB 40Gbps Type C (Rear) LAN
Intel KillerTM E5000 5Gbps LAN Internal IO
1x Power Connector(ATX_PWR)
2x Power Connector(CPU_PWR)
1x Power Connector(PCIE_PWR 8pin)
1x CPU Fan
1x Combo Fan (Pump_Sys Fan)
5x System Fan
2x Front Panel (JFP)
1x Chassis Intrusion (JCI)
1x Front Audio (JAUD)
1x Tuning Controller connector(JDASH)
3x Addressable V2 RGB LED connector (JARGB_V2)
2x RGB LED connector(JRGB)
1x TPM pin header(Support TPM 2.0)
4x USB 2.0 ports
2x USB 5Gbps Type A ports
1x USB 10Gbps Type C ports WIRELESS LAN and BLUETOOTH
Intel KillerTM BE1750x Wi-Fi 7
The Wireless module is pre-installed in the M.2 (Key-E) slot
Supports MU-MIMO TX/RX, 2.4GHz / 5GHz / 6GHz Note1 (320MHz) up to 5.8Gbps
Supports 802.11 a/ b/ g/ n/ ac/ ax/ be
Supports Bluetooth 5.4Note2, MLO, 4KQAM
Note1: 6GHz band support may depend on every countrys regulations and Wi-Fi 7 will be ready in Windows 11 SV3.
Note2: The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendors website for details. Bluetooth 5.4 support schedule depends on MSFT Windows 11 plan. LED FEATURE
4x EZ Debug LED
1x EZ Memory Detection LED BACK PANEL PORTS
Clear CMOS Button
DisplayPort
USB 2.0 (Flash BIOS Port)
5G LAN
USB 10Gbps Type-A
Audio Connectors
Flash BIOS Button
ThunderboltTM 4 40Gbps (Type-C)
HDMITM
USB 2.0
USB 10Gbps Type-A
USB 10Gbps Type-C
Wi-Fi / Bluetooth
S/PDIF-OUT OPERATING SYSTEM
Support for Windows 11 64-bit PCB Info
ATX
243.84mmx304.8mmItem Dimension (L inchxW inchxH inch)
14 x 11 x 3

Weight
5.50 lb

Warranty Information
3years

Features

Package Contents:   
  • MAG B860 TOMAHAWK WIFI Gaming Desktop Motherboard
  • Quick Installation Guide
  • European Union Regulatory Notice
  • Shout-Out Flyer
  • 1 x SATA Cable
  • EZ M.2 Clips II
  • EZ M.2 Clip II Remover
  • EZ Wi-Fi Antenna
  • 1 to 2 EZ Conn-Cable (V1)
  • EZ Front Panel Cable

 

Brand Compatibility:   
Intel

 

Specs

Physical Characteristics
Form FactorATX
Width12"
Depth9.6"
I/O Expansions
Number of PCI Express x1 Slots1
PCI Express Standard
Number of PCI Express x16 Slots2
Total Number of PCI Express Slots3
Memory
Memory TechnologyDDR5 SDRAM
Number of Memory Slots4
Memory Speed Supported
Memory Form Factor
Maximum Memory Supported256 GB
General Information
Brand NameMSI
Manufacturer Website Addresshttp://www.msi.com
Marketing InformationMAG B860 TOMAHAWK WIFI
MAG B860 TOMAHAWK 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
MAG MSI ARSENAL GAMING
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.
READY FOR Ai PC
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.
Al Engine
provides several categories for you to sync the applications you want to perform and automatically optimizing them to create a comfortable environment.
AI LAN MANAGER
optimizes networking performance and minimizes latency, providing a seamless online experience.
Frozr Al Cooling
automatically adjusts fan duty to make sure the system stays in cool, stable and high performance.
Al Boost
is an MSI exclusive feature. It overclocks NPU to improve higher Al performance.
Product TypeGaming Desktop Motherboard
Product NameMAG B860 TOMAHAWK WIFI Gaming Desktop Motherboard
ManufacturerMSI
Manufacturer Part NumberB860TOMAHAWKWIFI
Product ModelB860 TOMAHAWK WIFI
Product LineMAG
Processor & Chipset
Chipset ManufacturerIntel
Processor SupportedCore Ultra
Total Processor Supported1
Processor SocketSocket LGA-1851
Chipset ModelB860
Technical Information
AI-poweredYes
Onboard Interfaces
Number of SATA Interfaces4
Total Number of Onboard USB Ports7
Number of M.2 Interfaces3
Number of Onboard USB 2.0 Ports4
Interfaces/Ports
S/PDIFYes
HDMI Version<li>2.1</li>
DisplayPortYes
Number of Thunderbolt 4 Ports1
HDMIYes
Number of USB 2.0 Ports4
Total Number of USB Ports10
ThunderboltYes
Number of Network (RJ-45) Ports1
I/O Controller
RAID SupportedYes
Controller TypeSerial ATA/600
RAID Levels
Video
Onboard VideoCPU Dependent Video
Network & Communication
Wireless LANYes
Wireless LAN StandardIEEE 802.11 a/b/g/n/ac/ax/be
BluetoothYes
Bluetooth StandardBluetooth 5.4
Gigabit EthernetYes
Audio
Audio Channels7.1

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Warranty Information

All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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MSI MAG B860 TOMAHAWK WIFI Gaming Desktop Motherboard - Intel B860 Chipset - Socket LGA-1851 - ATX (b860tomahawkwifi)
$262.51