MSI MAG B860 Tomahawk Wifi Intel LGA 1851 ATX Motherboard
- 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
- Lightning Fast Game experience: PCIe 5.0 slot, Lightning 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

MSI MAG B860 Tomahawk Wifi Intel LGA 1851 ATX Motherboard
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 battlefield of Intel Core Ultra processors.
EZ PCIe Release
An easy-to-access physical button release mechanism that can help remove any PCIe card with a single tap, making it much easier to upgrade to a new GPU or other compatible device, streamlining the entire process and enhancing user experience.
The Pre-Installed I/O Shield offers a streamlined and hassle-free installation experience by eliminating the need to manually fit the I/O shield during motherboard setup. With its built-in design, it ensures proper alignment and a secure fit, providing both protection and convenience while enhancing the overall durability of your build.
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.
OPTIMIZED PCB SOLUTION
The PCB design has been optimized for higher bandwidth and faster transfer speeds, which is also beneficial for reliable circuit transmission.
DDR5 MEMORY SUPPORT WITH HIGH PERFORMANCE
A huge step of DDR performance enhancement with the latest DDR5 memory. Combines with dedicated SMT welding process and MSI Memory Boost technology, MAG B860 TOMAHAWK WIFI is ready to deliver the world-class memory performance.
Memory Extension Mode
Memory Extension Mode provides optimized memory parameters for enhanced capability at the same frequency, achieving lower latency and higher performance. Furthermore, Memory Extension Mode can combine XMP profiles to maximize memory frequency, enabling users to effortlessly discover the best configuration based on their requirements.
Combo Fan Header
The MSI Combo Fan Header is a versatile component, functioning as both a pump and or fan header. The header will automatically detects whether it is either pump or PWM/DC fan, with it’s distinctive gray color ensuring easy identification
DIY 2.0 – INTEGRATING WITH THE SYSTEM ENVIRONMENT
Connect and synchronize with MSI coolers and cases with strategically positioned pin-header locations including a dedicated pump-fan header.
HIGH-BANDWIDTH AND LOW-LATENCY NETWORK
MSI’s premium network solution provides incredible data transfer speed for demanding users.
THE NEXT GEN WI-FI SOLUTION – WI-FI 7
Wi-Fi 7 is the latest wireless solution that takes a huge leap forward with multiple improvements to meet the traffic demand brought and the growing number of wireless devices.
HIGH-BANDWIDTH AND LOW-LATENCY NETWORK
MSI’s premium network solution provides incredible data transfer speed for demanding users.

EZ Antenna with Magnetic Stand
Intel KiLLER Performance Suite
Equipped with Intel Killer LAN / Killer Wi-Fi, you can use the Intel Killer Performance Suite. It not only prioritizes frequently used applications but also provides recommendations to optimize network quality.
FAST AND FUTURE-READY STORAGE
MSI MAG series motherboards support all the latest storage standards, which allows users to connect any ultra-fast storage device. Start games faster, load levels faster and have a real advantage over your enemies.
SPECIFICATIONS
Chipset | INTEL B860 |
---|---|
CPU | Supports Intel® Core™ 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 product’s Support page or visit https://www.msi.com/support/. |
Onboard Graphics | 1x HDMI™ Support HDMI™ 2.1 with FRL, maximum resolution of 8K 60Hz*/ ** 1x DisplayPort Support DisplayPort 1.4, maximum resolution of 4K 60Hz*/ ** 1x Type-C DisplayPort Thunderbolt™ 4 ports, supporting DisplayPort 2.1 with UHBR20 over USB Type-C, with a maximum resolution of 4K@120Hz / 8K@60Hz* *Available only on processors featuring integrated graphics. ** 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) *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 devices M.2_2 Source (From Chipset) supports up to PCIe 4.0 x4 / SATA mode, supports 22110/2280/2260 devices M.2_3 Source (From Chipset) supports up to PCIe 4.0 x4 / SATA mode, supports 2280/2260/2242 devices 4x SATA 6G *If you install a 22110 SSD into the M2_2 slot, the M2_3 slot will only support 2242/ 2260 SSD. **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® Killer™ E5000 5Gbps LAN |
Internal IO | 1x Thunderbolt5 card connector(JTBT5, support RTD3) 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 1x EZ Conn-header (JAF_1) 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) 1x OC dashboard connector(JDASH1) 4x USB 2.0 ports 2x USB 5Gbps Type A ports 1x USB 10Gbps Type C ports |
WIRELESS LAN & BLUETOOTH | Intel® Killer™ 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* (320MHz) up to 5.8Gbps Supports 802.11 a/ b/ g/ n/ ac/ ax/ be Supports Bluetooth® 5.4**, MLO, 4KQAM * 6GHz band support may depend on every country’s regulations and Wi-Fi 7 will be ready in Windows 11 SV3. ** The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendor's 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 |
Weight | 1 kg |
---|---|
Brand | MSI |
Product Type | Gaming |
Motherboard Size | ATX |
Socket | LGA 1851 |
Chipset | B860 |
RAM Type | DDR5 |
Platform | Intel |
EAN Code | 4711377279642 |
Warranty | 3 Years |
Q & A
