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MSI MAG B850 Tomahawk Wi-Fi specifications and in-depth review

MSI MAG B850 Tomahawk Wi-Fi

Manufacturer: MSI

The MSI MAG B850 Tomahawk Wi-Fi is an ATX form factor motherboard built around the AM5 socket and B850 chipset, targeting users who want a capable platform for modern AMD processors. It includes integrated Wi-Fi 7 (802.11be) alongside Bluetooth 5.4, covering a broad range of wireless connectivity standards from Wi-Fi 4 through Wi-Fi 7. RGB lighting and an easy BIOS reset mechanism are also part of the package, and the board carries a three-year warranty.

On the memory side, the board provides four DDR5 slots across two channels, supporting up to 256GB at a native speed of 5600 MHz or up to 8200 MHz when overclocked. Expansion is handled by one PCIe 5.0 x16 slot, one PCIe x4 slot, and one PCIe x1 slot, while storage options include three M.2 sockets and four SATA 3 connectors with RAID 0 and RAID 1 support. The rear I/O offers a total of nine USB ports across multiple standards, including a USB 3.2 Gen 2x2 Type-C port, alongside a single HDMI 2.1 output and one RJ45 ethernet port. Audio is handled by a 7.1-channel solution rated at a 120 dB signal-to-noise ratio, complemented by an S/PDIF output.

Pros
  • Supports Wi-Fi 7 along with all previous Wi-Fi generations down to Wi-Fi 4, covering a wide range of wireless standards
  • Bluetooth 5.4 is included for modern wireless peripheral connectivity
  • The single PCIe 5.0 x16 slot accommodates the latest generation of discrete graphics cards and high-speed expansion devices
  • DDR5 memory can be overclocked up to 8200 MHz, with support for up to 256GB across four slots
  • Eight fan headers provide broad cooling management flexibility for complex builds
  • Three M.2 sockets alongside four SATA 3 connectors offer substantial storage installation options
Cons
  • Dual BIOS is not available, meaning there is no hardware-level BIOS backup in case of a failed update
  • ECC memory is not supported, limiting use in workloads that require error-correcting RAM
  • No USB 4 ports are present on the rear I/O, despite the board targeting a current-generation platform
  • RAID 5, RAID 10, and RAID 0+1 configurations are not supported, restricting advanced storage redundancy options
  • There is only one HDMI output and no DisplayPort, limiting built-in display connectivity options
Who is this for?

This board is well-suited to enthusiast desktop builders who want a current-generation AM5 platform with room to grow. The PCIe 5.0 x16 slot accommodates the latest discrete GPUs, while the combination of three M.2 sockets, four SATA 3 connectors, and support for up to 256GB of DDR5 memory makes it a solid foundation for demanding workstation or high-end gaming builds. Users who rely on wireless connectivity will appreciate the full Wi-Fi 7 support alongside Bluetooth 5.4, and the eight fan headers make it practical for builds with elaborate cooling setups.

Who is this NOT for?

This board is not a good fit for users who need ECC memory support, such as those running servers, data-critical workstations, or professional applications where memory error correction is a requirement. It is equally unsuitable for anyone who needs advanced RAID configurations like RAID 5 or RAID 10, as only RAID 0 and RAID 1 are supported. Users who depend on multiple display outputs or require DisplayPort connectivity will also find the single HDMI-only video output limiting, and those wanting a hardware BIOS backup will be disappointed by the absence of dual BIOS.

General info:

CPU socket AM5
chipset B850
form factor ATX
supports Wi-Fi ✓
Wi-Fi version 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)
Has Bluetooth ✓
Bluetooth version 5.4
HDMI version HDMI 2.1
Easy to overclock ✓
has RGB lighting ✓
Easy to reset BIOS ✓
Has dual BIOS ✕
has aptX ✕
CPU sockets 1
Has integrated graphics ✕
warranty period 3 years
height 243.8 mm
width 304.8 mm
Has integrated CPU ✕

The MSI MAG B850 Tomahawk Wi-Fi is built around the AM5 socket and is compatible with the B850 chipset, housed in a standard ATX form factor measuring 304.8 mm wide by 243.8 mm tall. It features a single CPU socket and supports overclocking, making it straightforward to push performance beyond stock settings. Wireless connectivity spans Wi-Fi 4 through Wi-Fi 7 (802.11be), and Bluetooth 5.4 is included, though aptX is not supported. Video output is available via an HDMI 2.1 port, while integrated graphics and an integrated CPU are absent, meaning a discrete GPU and a separate processor are required. The board includes RGB lighting and offers an easy BIOS reset option, though it does not feature dual BIOS. A three-year warranty is provided.

Memory:

maximum memory amount 256GB
RAM speed (max) 5600 MHz
overclocked RAM speed 8200 MHz
memory slots 4
DDR memory version 5
memory channels 2
Supports ECC memory ✕

The board supports DDR5 memory across four slots arranged in a dual-channel configuration, with a maximum capacity of 256GB. Native RAM speeds reach up to 5600 MHz, and with overclocking that ceiling extends to 8200 MHz. ECC memory is not supported.

Ports:

USB 3.2 Gen 2 ports (USB-A) 2
USB 3.2 Gen 1 ports (USB-A) 2
USB 3.2 Gen 2 ports (USB-C) 1
USB 3.2 Gen 1 ports (USB-C) 0
USB 2.0 ports 4
USB 3.2 Gen 2x2 ports 1
USB 4 40Gbps ports 0
USB 4 20Gbps ports 0
Thunderbolt 4 ports 0
Thunderbolt 3 ports 0
has an HDMI output ✓
DisplayPort outputs 0
RJ45 ports 1
Has USB Type-C ✓
eSATA ports 0
DVI outputs 0
has a VGA connector ✕
PS/2 ports 0

The rear I/O offers a total of ten USB ports: two USB 3.2 Gen 2 Type-A ports, two USB 3.2 Gen 1 Type-A ports, one USB 3.2 Gen 2 Type-C port, one USB 3.2 Gen 2x2 Type-C port, and four USB 2.0 ports. USB 4, Thunderbolt 3, and Thunderbolt 4 are not present. For display output, there is one HDMI port, while DisplayPort, DVI, and VGA connectors are all absent. Networking is handled by a single RJ45 port, and there are no eSATA or PS/2 ports.

Connectors:

USB 3.2 Gen 1 ports (through expansion) 2
USB 3.2 Gen 2 ports (through expansion) 0
USB 3.2 Gen 2x2 ports (through expansion) 0
USB-C 3.2 Gen 2 ports (through expansion) 1
USB 2.0 ports (through expansion) 4
SATA 3 connectors 4
fan headers 8
M.2 sockets 3
Has TPM connector ✓
U.2 sockets 0
Has mSATA connector ✕
SATA 2 connectors 0

For internal expansion, the board provides two USB 3.2 Gen 1 headers, one USB-C 3.2 Gen 2 header, and four USB 2.0 headers, while USB 3.2 Gen 2 and Gen 2x2 expansion connectors are not included. Storage connectivity consists of three M.2 sockets and four SATA 3 connectors; there are no SATA 2, U.2, or mSATA connectors. Cooling is well-served by eight fan headers, and a TPM connector is present on the board.

Expansion slots:

PCIe 4.0 x16 slots 0
PCIe 5.0 x16 slots 1
PCIe 3.0 x16 slots 0
PCIe x1 slots 1
PCI slots 0
PCIe 2.0 x16 slots 0
PCIe x4 slots 1
PCIe x8 slots 0

The board features one PCIe 5.0 x16 slot as its primary expansion lane, along with one PCIe x4 slot and one PCIe x1 slot. There are no PCIe 2.0, 3.0, or 4.0 x16 slots, no PCIe x8 slot, and no legacy PCI slots.

Audio:

Signal-to-Noise ratio (DAC) 120 dB
audio channels 7.1
Has S/PDIF Out port ✓
audio connectors 2

The onboard audio solution supports 7.1-channel output and delivers a DAC signal-to-noise ratio of 120 dB. Two analog audio connectors are available on the rear I/O, and a S/PDIF output port is also included for digital audio passthrough.

Storage:

Supports RAID 1 ✓
Supports RAID 10 (1+0) ✕
Supports RAID 5 ✕
Supports RAID 0 ✓
Supports RAID 0+1 ✕

The board supports RAID 0 and RAID 1 configurations, covering basic striping and mirroring setups respectively. RAID 5, RAID 10, and RAID 0+1 are not supported.

Final Verdict

The MSI MAG B850 Tomahawk Wi-Fi delivers a well-rounded AM5 platform that covers the needs of enthusiast desktop builders without overreaching into workstation territory. Its PCIe 5.0 x16 slot combined with Wi-Fi 7 and DDR5 support up to 8200 MHz positions it firmly in the current generation, and the generous storage and cooling infrastructure make it practical for complex, high-performance builds. That said, the absence of ECC memory support, limited RAID options, and a single HDMI-only display output mean it is best treated as a consumer desktop board rather than a professional or server solution. For builders seeking a capable, connectivity-rich ATX motherboard on the AM5 platform, this board represents a coherent and technically complete choice.