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MOTHERBOARDS

MSI MAG B650 TOMAHAWK WIFI

AM5 · ATX · DDR5 · board only

CPU socket
AM5
Chipset
AMD B650
Form factor
ATX; 304.8 × 243.84 mm

An ATX AM5 motherboard with AMD B650: four DDR5 slots rated up to DDR5-7600+ (OC), three PCIe 4.0 x4 M.2 slots, six SATA ports, Realtek 2.5 Gb Ethernet and Wi-Fi 6E.

Prices & buying options

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Price history · US
eBay USnew · USD

Item price · same listing and exact model

Latest check$139.99
Lowest shown$139.99

14 observed days · 4 Oct–17 Oct

eBay US observed item prices14 observed days. Last checked price per UTC day. Missing dates break the line. Use Explore dates or the table for exact values.
$139.9917 Oct, 12:03 UTC

Last recorded item price per UTC day. Delivery and tax are excluded. Gaps mean no recorded check. Past prices do not confirm current availability; this is not a market-wide price history.

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Checked (UTC)Item price
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$139.99
$139.99
$139.99
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$139.99
$139.99
$139.99
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$139.99

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THE ACTUAL PRODUCT
MSI MAG B650 TOMAHAWK WIFI motherboard, top view of the exact global model; CPU and memory are not installed
Official product image · Image source detailsProduct imagery does not establish a retailer’s bundle or condition.
Compare with ASUS TUF GAMING B650E-E WIFI

Specifications checked 7 Sept 2026Manufacturer specifications, not a hands-on test.

Options worth comparing

Explore all alternatives

The nearest checked motherboards by key specifications, with what differs from the MSI MAG B650 TOMAHAWK WIFI. The first matches the Compare button above.

The useful part.

Key strengths

Three PCIe 4.0 x4 M.2 slots and six SATA ports, with four DDR5 slots rated up to DDR5-7600+ (OC).

Wi-Fi 6E with 160 MHz channels, Realtek 2.5 Gb Ethernet, a rear 20 Gb/s USB-C port, Realtek ALC4080 audio with optical S/PDIF and a Flash BIOS button.

The checks that matter.

Before you buy

No PCIe 5.0 graphics or M.2 slots. M2_2 is unavailable with Ryzen 8500/8300 processors, and M2_3 and PCI_E2 both drop to x2 when used together.

Build around it.

Works with

Products in this catalogue that list the same socket or memory type as the MSI MAG B650 TOMAHAWK WIFI. A shared socket or memory type is necessary but not sufficient: check the exact CPU and memory support lists, and the BIOS version, before buying.

Start a build with thisOpens My setups with the MSI MAG B650 TOMAHAWK WIFI in place and checks each part you add
Every specification. With its source.

Full specifications

Exact configuration: AM5 · ATX · DDR5 · board-only configuration · MSI global specification

23 specifications in 9 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.

Platform & board

3 items
CPU socket
AM5

Match the exact CPU and required BIOS as well as the physical socket.

Source
Chipset
AMD B650Source
Form factor
ATX; 304.8 × 243.84 mm

Board dimensions, not retail packaging. Check case mounting positions, clearance and cable routing.

Source

Memory

4 items
DIMM slots
4

Physical DDR5 module positions, not included modules. Consult the board manual for population order and compatible capacities.

Source
Maximum listed memory
256 GB

Manufacturer capacity ceiling for this exact board, not included memory or a performance measurement. CPU, BIOS, DIMM population and the validated-module list determine support. DDR5 slots require DDR5 modules; DDR4 and DDR5 are not interchangeable.

Source
Memory type, slots and limit
4 DDR5 DIMM slots; dual channel; up to 256 GB; up to DDR5-7600+ (OC); AMD EXPO; non-ECC unbuffered

The overclocked speed is MSI's 1DPC 1R maximum; MSI lists 1DPC 2R and 2DPC 1R up to 6400+ and 2DPC 2R up to 5400+ MHz. JEDEC default is DDR5-4800. · Manufacturer capacity ceiling for this exact board, not included memory or a performance measurement. CPU, BIOS, DIMM population and the validated-module list determine support. DDR5 slots require DDR5 modules; DDR4 and DDR5 are not interchangeable.

Source
Published DDR5 overclocking profiles
1 DIMM/channel: 7600+ (1 rank), 6400+ (2 ranks); 2 DIMMs/channel: 6400+ (1 rank), 5400+ (2 ranks)

MSI labels these figures MHz. They are overclocking ratings, not guaranteed speeds at maximum capacity; CPU, BIOS, module ranks and population all matter.

Source

Expansion slots

1 item
Expansion slots and electrical links
1 × PCIe 4.0 x16; 1 × PCIe 4.0 x2; 1 × PCIe 3.0 x1

PCI_E1 connects to the CPU; PCI_E2 (x16-length) and PCI_E3 connect to the chipset. · PCI_E1 runs at x16 with Ryzen 9000/7000, x8 with Ryzen 8700/8600/8400 and x4 with Ryzen 8500/8300. M2_3 and PCI_E2 each run at x2 when both are populated.

Source

Storage

4 items
Onboard M.2 storage slots
3

Onboard M.2 storage positions only. M2_2 is unavailable with Ryzen 8500/8300 processors. M2_3 and PCI_E2 each run at x2 when both are used. SATA_A1 and SATA_A2 do not support RAID.

Source
SATA storage ports
6

SATA 6 Gb/s connectors, not supplied drives or power cables. M2_2 is unavailable with Ryzen 8500/8300 processors. M2_3 and PCI_E2 each run at x2 when both are used. SATA_A1 and SATA_A2 do not support RAID.

Source
Storage interfaces
3 × M.2 PCIe 4.0 x4; 6 × SATA 6 Gb/s

M2_1 and M2_2 connect to the CPU; M2_3 connects to the chipset. · M2_2 is unavailable with Ryzen 8500/8300 processors. M2_3 and PCI_E2 each run at x2 when both are used. SATA_A1 and SATA_A2 do not support RAID. M2_1 takes 22110/2280 drives; M2_2 and M2_3 take 2280/2260.

Source
Published storage RAID modes
SATA: RAID 0, 1 and 10; M.2 NVMe: RAID 0 and 1

SATA_A1 and SATA_A2 do not support RAID. M2_2 and shared-lane restrictions still apply. Check the exact CPU, BIOS, drives and driver configuration.

Source

USB & rear connections

4 items
Motherboard display outputs
HDMI 2.1: up to 4K 60 Hz with HDR; DisplayPort 1.4: up to 8K 60 Hz

Requires a processor with integrated graphics. Output limits depend on the installed CPU, display and cable; these are published interface modes, not gaming performance.

Source
Rear-panel USB connections
2 USB 2.0; 4 USB-A 5 Gb/s; 3 USB-A 10 Gb/s; 1 USB-C 20 Gb/s

Rear-panel ports only. Link rates are manufacturer maxima, not measured transfer speeds; the USB-C label does not establish display output or laptop charging.

Source
USB connections supported by internal headers
4 USB 2.0 ports; 2 USB-A 5 Gb/s ports; 1 USB-C 10 Gb/s port

Counts describe supported front-panel ports, not header housings. A case with matching ports and cables is required; these are not additional rear-panel connectors.

Source
Rear USB-C 20 Gb/s ports
1

One rear-panel Type-C connector rated up to USB 20 Gb/s; this does not imply USB4, display output or a charging wattage.

Source

Networking

2 items
Network interfaces
Realtek 8125BG 2.5 Gb Ethernet; Wi-Fi 6E; Bluetooth 5.3

6 GHz availability depends on country rules, operating system and drivers. Link capabilities are not measured throughput.

Source
Published wireless channel widths
20, 40, 80 and 160 MHz

Channel widths listed in this exact MSI specification. Allowed channels and widths depend on band, country, access point, operating system and driver. The list is not a measured throughput result or a guarantee that every width is usable in every band.

Source

Audio

1 item
Onboard audio hardware
Realtek ALC4080 codec; 7.1-channel

Manufacturer-listed onboard audio hardware (7.1-channel, S/PDIF output), not a measured sound-quality result.

Source

Power, cooling & lighting

1 item
System fan headers
6

System/chassis fan headers only. The separately listed CPU-fan and pump-fan headers are not included in this count; electrical limits require the manual.

Source

BIOS, software & diagnostics

3 items
CPU support / BIOS source
AMD Ryzen 9000 / 8000 / 7000 Series

Check MSI's exact CPU support list and its required BIOS. Family support does not confirm the firmware installed on a retail board.

Source
Rear Flash BIOS button
Yes

MSI identifies a rear Flash BIOS button. Follow the exact board manual and firmware procedure; its presence does not establish the currently installed BIOS or out-of-box CPU support.

Source
EZ Debug indicators
4

MSI lists four EZ Debug LEDs. These are diagnostic indicators, not a numeric POST-code display or an automatic repair guarantee.

Source
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