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Wifi Guide

Does B450 Tomahawk Have Wifi? Board Details

Introduction If you are building a PC around an AMD Ryzen processor, the MSI B450 Tomahawk is one of the most frequently recommended motherboards. It is known for solid VRMs, a straightforward layout, and strong compatibility with first-, second-, and third-ge

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Introduction

If you are building a PC around an AMD Ryzen processor, the MSI B450 Tomahawk is one of the most frequently recommended motherboards. It is known for solid VRMs, a straightforward layout, and strong compatibility with first-, second-, and third-generation Ryzen CPUs. One question, however, comes up constantly in forums, Reddit threads, and PC building communities: Does B450 Tomahawk Have Wifi?

The short answer is no—at least not in the way many buyers hope. The standard MSI B450 Tomahawk and the updated B450 Tomahawk MAX do not include integrated wireless networking. You will not find an Intel or Realtek WiFi module soldered to the board, and there are no external antenna connectors on the rear I/O panel.

That does not mean you are stuck with Ethernet only. Adding WiFi to a B450 Tomahawk is simple, inexpensive, and well-documented. In this guide, we will cover every B450 Tomahawk variant, explain why MSI left WiFi off this particular board, walk you through step-by-step installation methods, compare the Tomahawk to competing B450 boards that do include wireless, and help you choose the best add-on solution for your needs.

Whether you are upgrading an older build or planning a new budget gaming rig, read on to get the complete board details and practical instructions for getting wireless connectivity on your B450 Tomahawk.

Table of Contents

Quick Answer: Does B450 Tomahawk Have Wifi?

No. Neither the original MSI B450 Tomahawk nor the B450 Tomahawk MAX comes with built-in WiFi. If you look at the specifications for either board, you will see Gigabit LAN listed under networking, but there is no mention of 802.11ac, 802.11ax, or wireless LAN. The rear I/O lacks antenna posts, and the board does not ship with WiFi antennas.

This often surprises buyers because other MSI B450 models—such as the B450M Mortar MAX WiFi or the B450 Gaming Pro Carbon AC—do include integrated wireless. The Tomahawk line, however, positions itself as a wired-first, value-oriented ATX board. If you need WiFi out of the box, you will either need to choose a different motherboard or add an aftermarket wireless card or adapter to your Tomahawk.

B450 Tomahawk Variants Explained

MSI released more than one version of the B450 Tomahawk, and the naming can be confusing. Understanding the differences matters when you are shopping for a board or checking specifications.

Original MSI B450 Tomahawk

The original B450 Tomahawk launched as part of MSI’s mainstream AMD 400-series lineup. It is a full-size ATX motherboard with four DDR4 DIMM slots, dual PCIe x16 slots (one running at x16, the other at x4), and multiple M.2 slots. Networking is handled by a single Realtek Gigabit Ethernet controller. There is no onboard WiFi module, no Bluetooth, and no antenna connectors.

Because it predates the MAX BIOS flashback improvements, the original board sometimes required a BIOS update to support newer Ryzen 3000-series processors out of the box. That update process could be tricky if you did not already have a compatible CPU.

MSI B450 Tomahawk MAX

The B450 Tomahawk MAX is the revised version of the original board. It features the same core layout and feature set but includes BIOS Flashback+, which lets you update the BIOS without installing a CPU, memory, or GPU. This made it much more friendly for Ryzen 5000-series upgrades after a BIOS update.

Despite the MAX improvements, MSI did not add integrated WiFi to this revision. The networking section still lists only Gigabit LAN. If you see a listing for “B450 Tomahawk MAX,” assume it does not have wireless unless the seller explicitly mentions an aftermarket card bundled in the package.

Is There a B450 Tomahawk WiFi Model?

In most retail markets, there is no official “B450 Tomahawk WiFi” or “B450 Tomahawk MAX WiFi” motherboard. MSI uses different naming for its wireless-enabled B450 boards. For example, the B450M Mortar MAX WiFi is a micro-ATX board with integrated wireless, and the B450 Gaming Pro Carbon AC includes “AC” in the name to denote WiFi. The Tomahawk line simply does not carry an AC or WiFi suffix.

If you encounter a board labeled “B450 Tomahawk WiFi” on a third-party marketplace, it is likely a standard Tomahawk with a PCIe WiFi card pre-installed by a system integrator, not an official MSI variant. Always verify the exact model number on the box or the PCB before purchasing.

Why Doesn’t the B450 Tomahawk Have Built-In Wifi?

Motherboard manufacturers segment their products by price, features, and target audience. The B450 Tomahawk was designed to compete in the budget-to-midrange ATX segment, where many builders prioritize VRM quality, expansion slots, and Ethernet reliability over wireless convenience.

Including an integrated WiFi module adds to the bill of materials. It requires a wireless chip, antennas, antenna connectors, PCB space, and regulatory certifications. By omitting WiFi, MSI can keep the Tomahawk’s price lower while still delivering strong power delivery for overclocking and memory tuning.

Another factor is the typical use case. Many desktop PC builders connect via Ethernet for lower latency and higher stability, especially for gaming. MSI likely assumed that users who need WiFi would prefer to choose their own adapter based on range, speed, and antenna placement rather than being locked into whatever module the manufacturer selected.

How to Add Wifi to Your B450 Tomahawk Motherboard

Since the board does not include wireless networking, you have three practical options for getting WiFi on a B450 Tomahawk system. Each method has advantages and trade-offs depending on your budget, available expansion slots, and desired performance.

  • PCIe WiFi card: Installs in a PCIe x1 or x4 slot. Offers strong performance and external antennas, but consumes an expansion slot.
  • M.2 WiFi card: Installs in an M.2 Key-E or Key-AE slot. Keeps the rear of the case clean and does not use a full PCIe slot, but requires an M.2 slot that supports wireless and often comes with small antennas.
  • USB WiFi adapter: Plugs into a USB 3.0 or USB 2.0 port. The easiest option with no installation inside the case, but generally offers weaker signal and lower speeds than a dedicated card.

In the next sections, we will walk through the two internal installation methods step by step, then discuss drivers and BIOS settings.

Option 1: Install a PCIe WiFi Card

A PCIe WiFi card is usually the best choice for a desktop motherboard like the B450 Tomahawk. It plugs directly into the motherboard, provides dedicated wireless bandwidth, and typically includes external antennas that you can position for better reception. Most cards support modern standards such as WiFi 5 (802.11ac) or WiFi 6 (802.11ax), and many include Bluetooth as a bonus.

The B450 Tomahawk has multiple PCIe slots, so you can install a WiFi card without disrupting your graphics card, provided you have an open x1 or x4 slot.

Option 2: Install an M.2 WiFi Card

If you want to keep your PCIe slots free for other expansion cards, an M.2 WiFi card is a clean alternative. The B450 Tomahawk includes M.2 slots, but you must verify that one of them supports WiFi/Bluetooth modules (usually Key-E or Key-AE) and that it is not already occupied by an M.2 SSD.

M.2 WiFi cards are compact and often come with small antenna leads that route through the case. Installation is straightforward, but you may need to open the side panel and connect antenna cables to the module before securing it with a screw.

Option 3: Use a USB WiFi Adapter

A USB WiFi adapter is the path of least resistance. You plug it into a rear or front USB port, install drivers, and you are online. It requires no internal work and can be moved between computers easily.

The downside is performance. USB adapters—especially those without external antennas—often struggle with signal strength through a computer case. If your PC sits under a desk or in a cabinet, a USB adapter may deliver slower speeds and higher latency than a PCIe or M.2 card.

Step-by-Step: Installing a PCIe WiFi Card

Installing a PCIe WiFi card on a B450 Tomahawk takes about 15 to 30 minutes. Follow these steps carefully to avoid damaging components.

  1. Power down and unplug: Shut down Windows completely, turn off the power supply switch, and unplug the power cable from the wall.
  2. Open the case: Remove the side panel of your computer case. Set the screws aside in a safe place.
  3. Ground yourself: Touch a grounded metal object or wear an anti-static wrist strap to prevent electrostatic discharge.
  4. Identify an open slot: Look at the B450 Tomahawk motherboard and find an available PCIe x1 or x4 slot. Make sure it is not blocked by your graphics card’s shroud or a large CPU cooler.
  5. Remove the slot cover: Unscrew the corresponding metal bracket on the back of the case and set it aside.
  6. Insert the card: Align the PCIe WiFi card with the slot and press down firmly until it is seated. The gold contacts should be fully inserted.
  7. Secure the card: Screw the card’s bracket into the case to hold it steady.
  8. Attach antennas: Screw the included WiFi antennas onto the connectors on the card bracket. Position them vertically or angle them slightly for the best signal.
  9. Close the case: Reinstall the side panel and reconnect the power cable.
  10. Install drivers: Boot into Windows. Insert the driver disc or download the latest drivers from the card manufacturer’s website. Install the software, restart if prompted, and connect to your wireless network.

If the card includes Bluetooth, you may also need to connect an internal USB header cable from the card to a USB 2.0 header on the B450 Tomahawk. Check the card’s manual for details.

Step-by-Step: Installing an M.2 WiFi Card

An M.2 WiFi card is ideal if you want a low-profile installation. Here is how to install one on your B450 Tomahawk.

  1. Power down and unplug: Shut down the system, turn off the PSU, and disconnect the power cable.
  2. Open the case and ground yourself: Remove the side panel and discharge static electricity.
  3. Locate the correct M.2 slot: Consult your B450 Tomahawk manual to find an M.2 slot that supports WiFi/Bluetooth (typically Key-E or Key-AE). Ensure the slot is empty.
  4. Insert the M.2 card: Align the notches on the M.2 WiFi card with the slot and insert it at a roughly 30-degree angle.
  5. Secure with a screw: Push the card down flat and fasten it with the included M.2 screw.
  6. Connect antenna cables: If your card uses IPEX antenna connectors, gently attach the antenna leads to the module. Route the antennas to the rear of the case or through a designated opening.
  7. Reassemble and power on: Close the case, reconnect power, and boot into Windows.
  8. Install drivers: Download and install the latest WiFi and Bluetooth drivers from the card or laptop OEM website, then pair your wireless devices.

If your B450 Tomahawk does not have a compatible M.2 slot for wireless, or if the only available M.2 slots are occupied by NVMe SSDs, a PCIe card or USB adapter is the better route.

BIOS and Driver Considerations

Because the B450 Tomahawk does not have onboard WiFi, there are no motherboard-specific wireless BIOS settings to configure. However, a few system-level steps will help your new WiFi card work reliably.

  • Update the BIOS: If you are using the original B450 Tomahawk (not the MAX), update to the latest BIOS before installing new hardware. The MAX version includes BIOS Flashback+, making this easier.
  • Enable PCIe slots in BIOS: Enter the BIOS by pressing Delete during boot. Ensure that the PCIe slot you are using is set to “Enabled” or “Auto.” This is rarely an issue, but it is worth checking if the card is not detected.
  • Install chipset drivers: Download the latest AMD chipset drivers from MSI’s support page for the B450 Tomahawk. Stable chipset drivers improve overall PCIe and USB performance.
  • Use manufacturer drivers: Avoid relying solely on Windows Update for WiFi drivers. Download the latest driver package directly from Intel, Realtek, or the card vendor for the best stability and speed.

Once drivers are installed, your WiFi adapter should appear in the Windows Network and Sharing Center, and you can connect to your router just like on a laptop.

B450 Tomahawk vs. Other B450 Boards with Wifi

If you are still deciding whether to stick with the B450 Tomahawk and add WiFi separately, or switch to a board with integrated wireless, this comparison may help.

Feature MSI B450 Tomahawk / MAX MSI B450M Mortar MAX WiFi MSI B450 Gaming Pro Carbon AC
Form Factor ATX Micro-ATX ATX
Built-In WiFi No Yes Yes
Built-In Bluetooth No Yes Yes
Antenna Connectors No Yes Yes
BIOS Flashback MAX only Yes Yes
PCIe x16 Slots 2 1 2
M.2 Slots 2 2 2
Typical Price Lower Mid Higher

As the table shows, the B450 Tomahawk sacrifices integrated wireless in exchange for a lower price and a full ATX layout. If you already own the board, adding a PCIe or M.2 card is often cheaper than selling it and buying a WiFi-enabled model.

Best WiFi Cards for B450 Tomahawk

Not all wireless cards are created equal. For a B450 Tomahawk build, look for a card that matches your internet speed and router capabilities.

  • WiFi 6 (802.11ax) PCIe card: Ideal if you have a WiFi 6 router and gigabit internet. Look for Intel AX200 or AX210-based cards with Bluetooth 5.0 or 5.2.
  • WiFi 5 (802.11ac) PCIe card: A budget-friendly option that still handles most broadband connections well. Suitable for 100–300 Mbps plans.
  • M.2 WiFi 6 card: Choose this if you have a free M.2 Key-E slot and want to preserve PCIe slots. Many laptop-pulled AX200 modules work well with adapter brackets.
  • USB WiFi adapter with external antennas: Only recommended if you cannot open the case or need a temporary solution. Look for USB 3.0 models with dual-band support.

Avoid very cheap no-name adapters that lack driver support for Windows 10 or Windows 11. Stick with reputable brands such as TP-Link, ASUS, Gigabyte, or Intel-based OEM cards.

Tips and Best Practices for Wireless Connectivity

Adding WiFi to a desktop motherboard is only half the battle. To get a stable connection, follow these best practices.

  • Position antennas correctly: Keep antennas vertical and away from the back of the computer case if possible. Metal cases can block signals, so angle antennas toward your router.
  • Use the 5 GHz band: If your router supports dual-band WiFi, connect to the 5 GHz network for less interference and higher speeds, especially for gaming.
  • Keep drivers updated: Check the wireless card manufacturer’s website every few months for driver updates that improve stability and security.
  • Consider Ethernet for competitive gaming: Even the best WiFi card cannot match the latency and consistency of a wired Ethernet connection. If your router is nearby, run a cable.
  • Check for interference: Microwaves, cordless phones, and neighboring WiFi networks can cause interference. Use a WiFi analyzer app to pick the least congested channel.
  • Secure your network: Always use WPA2 or WPA3 encryption and a strong password. Avoid open or WEP networks.

Frequently Asked Questions

Does B450 Tomahawk Have Wifi built in?

No. The MSI B450 Tomahawk and B450 Tomahawk MAX do not include built-in WiFi. You must add a PCIe card, M.2 card, or USB adapter to get wireless connectivity.

Can I add WiFi to a B450 Tomahawk after purchase?

Yes. The board has open PCIe slots and M.2 slots that support aftermarket WiFi cards. Installation is straightforward and does not require soldering or permanent modifications.

Will Bluetooth work on a B450 Tomahawk?

Only if you add a WiFi card that includes Bluetooth, or a separate USB Bluetooth adapter. The motherboard itself does not have onboard Bluetooth.

Which PCIe slot should I use for a WiFi card?

Use any open PCIe x1 or x4 slot. Avoid blocking the slot your graphics card uses. On the B450 Tomahawk, the lower PCIe slots are usually ideal for a WiFi card.

Will installing a WiFi card affect my graphics card performance?

No, provided you use an open x1 or x4 slot. Your GPU will continue to run at its intended speed in the primary x16 slot.

Do I need antennas for a PCIe WiFi card?

Most PCIe WiFi cards ship with external antennas. While the card may function without them, range and speed will be significantly reduced. Always attach the antennas for best results.

Are all M.2 slots on the B450 Tomahawk compatible with WiFi cards?

No. You must check the manual to confirm which M.2 slot supports WiFi/Bluetooth modules. Some M.2 slots are storage-only and will not work with a wireless card.

Does the B450 Tomahawk support Windows 11 with a WiFi card?

Yes. As long as your CPU is supported by Windows 11 and you install compatible WiFi drivers, wireless networking works normally under Windows 11.

Conclusion

To answer the question one final time: Does B450 Tomahawk Have Wifi? No, it does not. Neither the original MSI B450 Tomahawk nor the B450 Tomahawk MAX includes integrated wireless networking, Bluetooth, or antenna connectors.

That limitation is easy to overcome. By installing a PCIe WiFi card, an M.2 wireless module, or even a USB adapter, you can add fast and reliable WiFi to your B450 Tomahawk system without replacing the motherboard. The board’s strong VRMs, BIOS Flashback+ on the MAX model, and ample expansion slots make it a solid foundation, and adding wireless simply rounds out the feature set.

If you are still shopping and absolutely need WiFi out of the box, consider an MSI B450 board with “WiFi” or “AC” in the name. But if you already own a Tomahawk—or want its specific ATX layout and value pricing—pick up a compatible wireless card, follow the installation steps above, and you will be online in minutes.