Overview

  • Supports AMD Ryzen 7 and Ryzen Processors
    In an AM4 socket.
  • Up to 4866+MHz
    4 x DDR4 memory slots, support up to 128GB 1; Supports DDR4 1866/2133/2400/2667/2800/2933/3000/3066/3200 MHz by JEDEC; Supports DDR4 2667/2800/2933/3000/3066/3200/3466/3600/3733/3866/4000/4133/4266/4400/4533/4600/4733/4800/4866+ MHz by A-XMP OC MODE.
  • AMD CrossFireX Graphics Support
    1x HDMI 2.1 port, supports a maximum resolution of 4096×2160 @60Hz 1 2; 1x DisplayPort, supports a maximum resolution of 4096×2160 @60Hz 1Maximum shared memory of 16GB.
  • Four 288-Pin DDR4 SDRAM DIMM Sockets
    Support up to 64GB of system memory.
  • Audio
    Realtek ALC1200 Codec; 7.1-Channel High Definition Audio; Supports S/PDIF output.
  • Storage
    6x SATA 6Gb/s ports; 2x M.2 slots (Key M); M2_1 slot (from AMD Processor); Supports PCIe 4.0/3.0 x4 1; Supports SATA 6Gb/s; Supports 2242/2260/2280/22110 storage devices; M2_2 slot (from AMD B550 chipset); Supports PCIe 3.0×4; Supports 2242/2260/2280 storage devices.
  • Expansion Slot
    1x PCIe 4.0/3.0 x16 slot (PCI_E1) 1; 1x PCIe 3.0 x16 slot (PCI_E3), supports x4 speed 2; 2x PCIe 3.0 x1 slots.
  • RAID
    Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices; Supports RAID 0 and RAID 1 for M.2 NVMe storage devices.
  • USB
    3x USB 3.2 Gen 1 5Gbps ports (1 Type-C internal connector, and 2 ports are available through the internal USB 3.2 Gen 1 5Gbps connector); 6x USB 2.0 ports (2 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors).
  • LAN
    1x Realtek RTL8125B 2.5Gbps LAN controller; 1x Realtek RTL8111H 1Gbps LAN controller.
  • Internal Connectors
    1x 24-pin ATX main power; 1x 8-pin ATX 12V power; 6x SATA 6Gb/s; 2x M.2 slots (M-Key); 1x USB 3.2 Gen 1 5Gbps Type-C port; 1x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports); 2x USB 2.0 connectors; 1x 4-pin CPU fan.
  • Internal Connectors
    1x 4-pin water-pump fan connector; 6x 4-pin system fan connectors; 1x Front panel audio connector; 2x System panel connectors; 1x Chassis Intrusion connector; 2x 4-pin RGB LED connectors; 2x 3-pin RAINBOW LED connectors; 1x TPM module connector; 1x Clear CMOS jumper.

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Specifications

Capacity & configuration

Memory Type Supported
DDR4
Memory Slot Type
288-pin DIMM

Dimensions & weight

Product Name
B550 TOMAHAWK MAX WIFI (Socket AM4) AMD B550 ATX DDR4 Wi-Fi 6E Motherboard
Product Length
304.8 millimeters
Product Width
50.8 millimeters
Product Weight
20 ounces

Features

Brand
MSI
Color
Black
Chipset
AMD B550
Chipset Compatibility
AMD
Form Factor
ATX
Processor Socket
Socket AM4 (PGA 1331)
Processor Compatibility
AMD Ryzen 7 5000 Series
Operating System Compatibility
Windows 10
Number of PCI-E Slots
3
Number of M.2 Slots
2
Number Of PCI-E x16 Slots
2
Number Of PCI-E x1 Slots
1
SATA Connector
6x SATA 6G
Wireless Connectivity
Bluetooth
Wireless Networking Standard
Wi-Fi 6E
Wireless Standard
AX
USB Ports
4 x USB-A 2.0
Audio Ports
1x Front Audio (JAUD)
Number of Audio Channels
7.1
Number Of Memory Slots
4
Maximum Memory Supported
128 gigabytes
Memory Format Supported
UDIMM
Memory Speeds Supported
4866
RAID Support
RAID 0
Year of Release
2021
UPC
824142286685

Power & warranty

Model Number
B550TMHWKWIFI
Warranty - Parts
3 years
Warranty - Labor
3 Year

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

Customer reviews

Write a review
JeramieEOct 27, 2026 · Verified purchase ★★★★★

Excellent Motherboard for a Gaming PC Build - The MSI B550 TOMAHAWK MAX WIFI is a great motherboard for anyone building a reliable AMD gaming PC. The overall design looks clean and sturdy, and it has plenty of features for a well-rounded setup. I like that it supports compatible Ryzen processors, DDR4 memory, and PCIe 4.0 for fast storage and graphics cards. The built-in Wi-Fi 6E and Bluetooth are convenient, while the 2.5Gb Ethernet port is a nice bonus for a wired gaming connection. Having two M.2 slots and six SATA connections also gives plenty of options for adding storage as needed. The BIOS Flash Button is another useful feature when updating the BIOS. Just make sure your CPU and RAM are compatible before installation, and check that your case supports a full-size ATX motherboard. Overall, this is a feature-packed motherboard that makes a solid foundation for a gaming or everyday PC build.

NOAHDOct 26, 2026 · Verified purchase ★★★★★

Msi motherboard - Works amazing, loved it since I bought it and have had 0 problems decently recommend buying

AngeLojaOct 24, 2026 · Verified purchase ★★★★★

perfect for a computer gaming - It’s a strong and durable motherboard perfect for a computer gaming

PorksteinOct 24, 2026 · Verified purchase ★★★★★

Great Motherboard - Gets the job done if you are looking to casually game

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