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Black ATX motherboard with silver heatsinks and blue accents

MSI

MSI MAG B860 TOMAHAWK WIFI Intel motherboard

SKU CH-EQ3H-8YXZX MPN MAG B860 TOMAHAWK WIFI

Supports Intel Core Ultra Series 2 processors on LGA 1851 with DDR5 up to 9200 MT/s, PCIe 5.0 x16, M.2 Gen5, 5G LAN and Wi-Fi 7

  • CPU Socket TypeLGA 1851
  • CPU TypeIntel Core Ultra Processors (Series 2)
  • ChipsetIntel B860
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardUp to DDR5 9200+ MT/s (OC)
  • Maximum Memory Supported256GB

Option MAG B860 TOMAHAWK WIFI

  • MAG B860 TOMAHAWK WIFI
  • MAG B860M MORTAR WIFI
  • B860 GAMING PLUS WIFI
  • B860M Gaming PLUS WIFI
  • PRO B860-P WIFI
  • PRO B860M-A WIFI

Struck-through versions exist but are not stocked here.

  • Supports Intel Core Ultra Series 2 processors on LGA 1851 socket
  • DDR5 memory overclocks to 9200 MT/s across four 288-pin slots
  • Wi-Fi 7 delivers 5.8 Gbps via 320 MHz channels
  • 5 Gbps Killer LAN provides wired throughput for low-latency gaming
  • Tool-less EZ M.2 Shield Frozr II simplifies SSD installation and cooling

Socket LGA 1851 platform for Intel Core Ultra

This ATX motherboard uses the Intel B860 chipset to support Intel Core Ultra Processors (Series 2). It provides a 12 Duet Rail power system with 60A smart power stages and dual 8‑pin CPU connectors for stable delivery under load. The board targets builders who want modern connectivity and straightforward assembly.

DDR5 9200 MT/s OC with four slots and Gen5 M.2

Four 288‑pin slots accept up to 256GB of DDR5 memory running at 9200+ MT/s when overclocked. One PCIe 5.0 x16 slot and one M.2 socket wired for PCIe 5.0 x4 give headroom for the fastest graphics cards and SSDs. Two additional M.2 sockets run at PCIe 4.0 x4 and four SATA 6Gb/s ports handle extra storage.

Wi‑Fi 7 and 5G LAN with extended heatsink cooling

Killer Wi‑Fi 7 BE1750x uses a 320MHz channel for up to 5.8Gbps throughput, 2.4 times faster than Wi‑Fi 6/6E. A Killer E5000B controller provides 5Gbps wired Ethernet while Bluetooth 5.4 handles peripherals. Extended heatsinks, 7W/mK MOSFET pads and the tool‑less EZ M.2 Shield Frozr II keep thermals in check during sustained workloads.

Highlights

  • Supports Intel Core Ultra Series 2 processors on LGA 1851 socket
  • DDR5 memory overclocks to 9200 MT/s across four 288-pin slots
  • Wi-Fi 7 delivers 5.8 Gbps via 320 MHz channels
  • 5 Gbps Killer LAN provides wired throughput for low-latency gaming
  • Tool-less EZ M.2 Shield Frozr II simplifies SSD installation and cooling

Specifications

BrandMSI
ModelMAG B860 TOMAHAWK WIFI
Part NumberMAG B860 TOMAHAWK WIFI
CPU Socket TypeLGA 1851
CPU TypeIntel Core Ultra Processors (Series 2)
ChipsetIntel B860
Number of Memory Slots4x288pin (DDR5)
Memory StandardUp to DDR5 9200+ MT/s (OC)
Maximum Memory Supported256GB
Channel SupportedDual Channel
PCI Express 5.0 x161 x PCI Express 5.0 x16
PCI Express 4.0 x162 x PCI Express 4.0 x16
Serial ATA (SATA)4 x SATA 6Gb/s
M.21 x M.2 (Support PCIe 5.0 x4) / 2 x M.2 (Support PCIe 4.0 x4)
Audio ChipsetRealtek ALC897
Audio Channels7.1 Channels
LAN ChipsetKiller E5000B
Max LAN Speed5Gbps
Wireless LANKiller Wi-Fi 7 BE1750x
BluetoothBluetooth 5.4
Back I/O Ports1 x Clear CMOS Button / 1 x DisplayPort / 1 x Flash BIOS Button / 1 x HDMI / 1 x LAN (RJ45) / 1 x Optical S/PDIF Out / 1 x Thunderbolt 4 / 1 x USB 3.2 Gen 2 Type-C / 2 x Antenna Bracket / 2 x Audio Jacks / 4 x USB 2.0/1.1 / 4 x USB 3.2 Gen 2 Type-A
Form FactorATX
Shipping weight1.86 kg
Package size347 × 279 × 76 mm

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will my DDR5-9200+ MT/s OC memory kits run at rated speed on this board with the LGA 1851 socket?

The board supports DDR5 up to 9200+ MT/s overclocked across four 288-pin slots in dual-channel mode, with a maximum capacity of 256 GB.

How can I confirm Wi-Fi 7 and 5 Gbps LAN are active after building the system?

In Device Manager the Killer BE1750x adapter should show Wi-Fi 7 with 320 MHz channel width, and the Killer E5000B LAN should report a 5 Gbps link speed.

Does the box include the EZ M.2 Shield Frozr II cooler and Wi-Fi 7 antennas, or must I buy them separately?

The EZ M.2 Shield Frozr II is integrated on the board for tool-less M.2 installation, and Wi-Fi 7 antennas are supplied in the box; no separate purchase is needed for either.

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