# Motherboard MSI MAG B550 TOMAHAWK MAX WIFI — AMD B550 ATX, Socket AM4, 4× DDR4, 2.5Gb LAN, Wi‑Fi, 2× M.2, 6× SATA III

**URL:** https://aio.lv/en/product--msi-7c94-043r--4817230
**Data updated:** 2026-01-21 10:58 (EET)
**Category:** Motherboards
**Manufacturer:** MSI
**Manufacturer code:** 7C94-043R
**EAN:** 4719072957957
**Warranty:** 3 Years
**Availability:** Out of stock

## Summary description

ATX motherboard MSI MAG B550 TOMAHAWK MAX WIFI for Socket AM4 processors (3rd Gen Ryzen compatible). Based on AMD B550 chipset, it supports up to 128 GB DDR4 across 4 DIMM slots (dual‑channel), 2.5Gb Ethernet (Realtek RTL8125B), onboard Wi‑Fi, two M.2 slots and six SATA III ports. Integrated Realtek ALC1200 7.1 audio, multiple USB ports including USB‑C, HDMI and DisplayPort outputs, PCIe x16/x1 slots and extensive fan and header support for desktop PC builds.

## Long description

The MSI MAG B550 TOMAHAWK MAX WIFI is an ATX motherboard for Socket AM4 designed for AMD Ryzen 3000-series processors. It supports DDR4 memory up to 128 GB across four DIMM slots, offers SATA III interfaces for HDD/SSD storage and RAID 0/1/10 support, and provides 2-Way CrossFireX for multi-GPU configurations. Built with a B550 chipset, the board includes PCIe slots, integrated 2.5Gbps LAN and Lightning Gen 4 M.2 support for high-speed storage.
Advantages
The board features an extended PWM heatsink and enhanced circuit design to improve thermal performance with multi-core CPUs, enabling sustained high performance. Lightning Gen 4 M.2 delivers very fast onboard storage transfer rates up to 64 Gb/s when paired with compatible processors and devices. Integrated 2.5Gbps Ethernet provides higher network throughput than standard Gigabit LAN for demanding applications, while built-in Wi‑Fi enables flexible connectivity.
Suitable for
Gaming and entry-level to mid-range gaming systems
Content creation and multi-threaded workloads using Ryzen CPUs
High-speed storage setups with NVMe Gen4 M.2 SSDs
Systems requiring fast wired networking (2.5Gbps) and Wi‑Fi connectivity
Multi-GPU setups using 2-Way CrossFireX
Key specifications
Form factor: ATX
Chipset: AMD B550
Processor socket: Socket AM4 (supports AMD Ryzen 3000 series)
Memory: 4 x DIMM, DDR4 up to 128 GB
Storage interfaces: SATA III, Lightning Gen 4 M.2 (up to 64 Gb/s)
Expansion slots: 1 x PCIe x16 (Gen3), 2 x PCIe x1 (Gen3)
LAN: 2.5Gbps Ethernet; Wireless: onboard Wi‑Fi
RAID support: 0, 1, 10
Maximum supported display resolution: 4096 x 2160 (when using integrated graphics-capable CPU)
How to use
Install the MSI MAG B550 TOMAHAWK MAX WIFI into a compatible ATX case and mount an AM4-compatible AMD Ryzen processor according to the motherboard manual. Insert DDR4 DIMMs into the recommended slots for optimal dual-channel configuration, connect SATA drives or an M.2 NVMe SSD for storage, and attach a graphics card to the PCIe x16 slot if required. Connect power supply cables (24-pin ATX and appropriate CPU power), configure BIOS/UEFI settings as needed, and install an operating system and drivers from MSI or the component manufacturers.
Usage recommendations
For best thermal performance with multi-core Ryzen processors, ensure proper case airflow and consider using the extended PWM heatsink area without obstructing airflow. Use certified DDR4 kits listed on MSI’s memory compatibility list and update the BIOS when installing newer CPU models to ensure full compatibility and stability.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | ATX |
| Motherboard chipset | AMD B550 |
| Component for | PC |
| Audio output channels | 7.1 |
| Windows operating systems supported | Windows 10 x64 |
| Motherboard chipset family | AMD |
| Number of mounting holes | 9 |

### Processor

| Feature | Value |
|---|---|
| Processor manufacturer | AMD |
| Maximum number of SMP processors | 1 |
| Processor socket | Socket AM4 |

### Memory

| Feature | Value |
|---|---|
| Number of memory slots | 4 |
| Maximum internal memory | 128 GB |
| Supported memory types | DDR4-SDRAM |
| Supported memory clock speeds | 3600, 2133, 1866, 2400, 2667, 2800, 2933, 3000, 3066, 3200, 3466, 5100, 3733, 3866, 4000, 4133, 4266, 4400, 4533, 4600, 4733 |
| Memory channels | Dual-channel |
| Unbuffered memory | Yes |
| Memory slots type | DIMM |
| ECC сompatibility | ECC & non-ECC |

### Expansion slots

| Feature | Value |
|---|---|
| PCI Express x1 (Gen 3.x) slots | 2 |
| PCI Express x16 (Gen 3.x) slots | 1 |
| Number of M.2 (M) slots | 2 |
| PCI Express x16 (Gen 4.x) slots | 1 |

### Graphics

| Feature | Value |
|---|---|
| Maximum graphics card memory | 16000 MB |
| Maximum resolution | 4096 x 2160 |
| Parallel processing technology support | 2-Way CrossFireX |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | Yes |
| LAN controller | Realtek RTL8125B, Realtek RTL8111H |
| Wi-Fi | No |
| Ethernet interface type | Gigabit Ethernet, 2.5 Gigabit Ethernet |

### Internal I/O

| Feature | Value |
|---|---|
| USB 2.0 connectors | 2 |
| CPU fan connector | Yes |
| ATX Power connector (24-pin) | Yes |
| Chassis intrusion connector | Yes |
| Number of chassis fan connectors | 6 |
| Front panel audio connector | Yes |
| TPM connector | Yes |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 1 |
| Number of SATA III connectors | 6 |
| 12V power connector | Yes |
| RGB LED pin header | Yes |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| PS/2 ports quantity | 1 |
| USB 2.0 ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 2 |
| S/PDIF out port | Yes |
| Digital audio optical out | 1 |
| HDMI ports quantity | 1 |
| DisplayPorts quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |

### Storage controllers

| Feature | Value |
|---|---|
| RAID levels | 10, 1 |
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | SATA III |

### BIOS

| Feature | Value |
|---|---|
| Clear CMOS jumper | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 305 mm |
| Depth | 244 mm |

### Other features

| Feature | Value |
|---|---|
| Supported processor sockets | Socket AM4 |
| Audio chip | Realtek ALC1200 |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | SATA |
| Drivers included | Yes |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All MSI products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized MSI service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: motherboard form factor, motherboard chipset, component for, processor socket, number of memory slots, maximum internal memory, pci express x16 (gen 3.x) slots, pci express x1 (gen 3.x) slots, supported memory types, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for MSI MAG B550 TOMAHAWK MAX WIFI motherboard?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

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