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Black Micro-ATX motherboard with silver heatsinks and AM4 socket

MSI

MSI MAG B550M Bazooka AMD motherboard

SKU CH-MQ39-P4VHB

Micro-ATX AM4 board with B550 chipset supporting Ryzen CPUs, 128 GB DDR4 up to 4400 MHz, one PCIe 4.0 x16 slot, two M.2 connectors, four SATA III ports, 7.1-channel audio and 1 Gbps LAN

  • ProcessorSupports AM4 socket 3rd Gen AMD Ryzen processors, and future
  • ChipsetAMD B550
  • CPU socketSocket AM4
  • Supported memorySupport dual-channel DDR4 1866/2133/2400/2667/2800/2933/3000
  • Max supported RAM128 GB
  • PCI slots1x PCIe 3.0/ 4.0 x16 slot (PCI_E1) 2x PCIe 3.0 x1 slots
  • Supports 3rd Gen Ryzen CPUs on Socket AM4
  • Up to 128GB dual-channel DDR4 memory capacity
  • PCIe 4.0 x16 slot for modern graphics cards
  • Two M.2 and four SATA storage interfaces
  • Realtek 7.1-channel audio with 1Gbps LAN

Socket AM4 Micro-ATX Foundation

The MSI MAG B550M Bazooka is a Micro-ATX motherboard built on the AMD B550 chipset for Socket AM4 processors. It supports 3rd Gen AMD Ryzen CPUs and future Ryzen processors with a BIOS update. The board provides a compact platform for mainstream desktop builds.

Value Builders And Compact Cases

This board suits builders who need a small form factor with dual-channel DDR4 support up to 128 GB across four slots. It offers one PCIe x16 slot, two PCIe x1 slots, four SATA III ports and two M.2 interfaces. Users needing more than one full-size graphics slot or extensive rear I/O should look at full-size ATX alternatives.

Dual-Channel DDR4 Up To 4400 MHz

Memory compatibility is the decisive specification. The board validates dual-channel DDR4 speeds from 1866 through 4400 MHz. Matching your kit to this supported range determines whether the system will post and run at the intended frequency.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $114.99
Cheaper than about 71% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameMSI
Product lineMSI MAG B550M BAZOOKA
Model nameMSI MAG B550M BAZOOKA
Processor
ProcessorSupports AM4 socket 3rd Gen AMD Ryzen processors, and future AMD Ryzen processors with BIOS update
CPU socketSocket AM4
ChipsetAMD B550
Memory
Supported memorySupport dual-channel DDR4 1866/2133/2400/2667/2800/2933/3000/3066/3200/3466/3600/3733/3866/4000/4133/4266/4400 + MHz memory
Max supported RAM128 GB
Storage
SATA and RAID support2XM.2 interface, 4xSATA III interface
Audio & video
Audio chipRealtek ALC892/ALC897 Codec
7.1-Channel High Definition Audio
Connectivity
Ethernet controller1x Realtek RTL8111HN 1 Gbit/s LAN controller
Ports & slots
PCI slots1x PCIe 3.0/ 4.0 x16 slot (PCI_E1)
2x PCIe 3.0 x1 slots

Questions about this item

Will my existing DDR4 memory modules work at 3200 MHz on the MAG B550M Bazooka?

The board supports dual-channel DDR4 at 3200 MHz among many other speeds up to 4400+ MHz so your modules will run at that frequency if they are rated for it.

How can I confirm the Realtek ALC892/897 audio codec is functioning after I build the system?

Install the Realtek audio driver from MSI's support page then open the sound control panel and verify 7.1-channel output is selectable and plays test tones on each channel.

Which accessories are included and what must I source separately for a complete build?

The box contains the motherboard a CMOS battery one SATA cable and the rear I/O shield; you will need to supply a CPU cooler mounting hardware RAM modules storage drives and a power supply.

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