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Micro-ATX board, black PCB, silver heatsinks, integrated Wi-Fi antenna port

MSI

MSI B550M PRO-VDH WIFI AMD motherboard

SKU CH-MGVH-BA94T MPN B550M PRO-VDH WIFI

Micro-ATX AM4 board with Wi-Fi, PCIe 4.0 x16, four DDR4 slots up to 4400 MHz and 128 GB capacity

  • ProcessorSupports AM4 socket 3rd Gen AMD Ryzen processors, and future
  • ChipsetAMD B550
  • Form factorMicro ATX
  • CPU socketAM4
  • Memory slot count4 × 288pin (DDR4)
  • Supported memorySupports DDR4 4400+/ 4266/ 4133/ 4000/ 3866/ 3733/ 3600/ 346

Model B550M PRO-VDH WIFI

  • Supports 3rd Gen Ryzen and future CPUs with BIOS update
  • DDR4 memory up to 4400 MHz via A-XMP OC mode
  • PCIe 4.0 x16 slot for high-speed graphics and storage
  • Built-in Wi-Fi AC up to 433 Mbps with low CPU load
  • 2 oz thickened copper PCB for improved heat dissipation

AM4 Micro-ATX for Ryzen builds

The MSI B550M PRO-VDH WIFI fits AM4 socket 3rd Gen Ryzen CPUs and future Ryzen processors with a BIOS update. Its Micro-ATX footprint suits compact workstations or budget gaming rigs. Four DDR4 slots accept up to 128 GB in dual-channel mode.

Passive chipset cooling and VRM heatsinks

The B550 chipset runs without a fan so silent operation is guaranteed. Extended VRM heatsinks and a 2 oz copper PCB spread heat from the digital power phase array. PCIe 4.0 support depends on the installed processor.

M.2 Shield Frozr and Wi-Fi AC

A built-in M.2 shield covers the Lightning Gen 4 slot to limit SSD throttling under load. Onboard Wi-Fi delivers up to 433 Mbps with low CPU overhead. Rear I/O includes a Flash BIOS Button for CPU-less updates.

How it compares

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

Price $79.99
Cheaper than about 83% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameMSI
Product linePRO
Model nameB550M PRO-VDH WIFI
Part numberB550M PRO-VDH WIFI
Processor
ProcessorSupports AM4 socket 3rd Gen AMD Ryzen processors, and future AMD Ryzen processors with BIOS update
CPU socketAM4
ChipsetAMD B550
Memory
Memory slot count4 × 288pin (DDR4)
Supported memorySupports DDR4 4400+/ 4266/ 4133/ 4000/ 3866/ 3733/ 3600/ 3466/ 3200/ 3066/ 3000/ 2933/ 2800/ 2667 MHz by A-XMP OC MODE
Supports DDR4 3200/ 3066/ 3000/ 2933/ 2800/ 2667/ 2400/ 2133/ 1866 MHz by JEDEC
1DPC 1R max speed 4400 MHz
1DPC 2R max speed 3733 MHz
2DPC 1R max speed 3866 MHz
2DPC 2R max speed 3466 MHz
Max supported RAM128 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
M.2 slots2 x M.2 slots (Key M)
M2_1 slot (from AMD Processor)
Supports PCIe 4.0/3.0 x4 *
Supports SATA 6Gb/s
Supports 2242/2260/2280 storage devices
M2_2 slot (from AMD B550 chipset)
Supports PCIe 3.0 x4
Supports 2242/2260/2280 storage devices
* The supported specification depends on installed processor.
SATA and RAID support0/1/10
Audio & video
Audio chipRealtek ALC892/ALC897 Codec
Sound channels7.1 Channels
Connectivity
Ethernet controllerRealtek 8111HN
Maximum network speed1 Gbit/s
Wi-Fi standardIntel Dual Band Wireless-AC 3168
Supports Wi-Fi 802.11 a/b/g/n/ac, dual band (2.4 GHz, 5 GHz) up to 433 Mbit/s speed.
Bluetooth supportSupports Dual Mode Bluetooth 2.1, 2.1+EDR, 3.0, 4.0, BLE, 4.2
Ports & slots
PCIe 4.0 x16 slots1 x PCIe 4.0/3.0 x16 slot (PCI_E1) *
* The supported specification depends on installed processor.
PCIe 3.0 x16 slots1 x PCI Express 3.0 x16
PCIe x16 slots1 x PCI Express x16
PCIe x4 slots3 x PCI Express x4
PCIe x1 slots2 x PCIe 3.0 x1 slots
PCI slots1 x PCI Slot
Rear panel ports4 x USB 3.1 Gen 1
PS/2 ports1
Serial ports3
Video connectors1
HDMI ports1 x HDMI
Ethernet port1 x RJ45
USB 3.1 ports2 x USB 3.1
USB 3.0 ports4 x USB 3.0
USB 2.0 ports9 x USB 2.0
S/PDIF output1 x Optical, 1 x Coaxial
Game/midi ports1
Audio jacks6 Ports
Onboard USB headers1 x USB 3.2 Gen 1 5 Gbit/s Type-C port
1 x USB 3.2 Gen 1 5 Gbit/s connector (supports additional 2 USB 3.2 Gen 1 5 Gbit/s ports)
2 x USB 2.0 connectors (supports additional 4 USB 2.0 ports)
Power
Power connectors1 × 24-pin ATX main power connector
1 × 8-pin ATX 12 V power connector
Size & build
Form factorMicro ATX
Width and length9.6 in × 9.6 in
Shipping weight1.09 kg
Package size279 × 272 × 70 mm
Compatibility
Windows 11 supportSupported
In the box
In the box1 unit
More details
PCI express 2.0 x161 x PCI Express 2.0 x16
ESATA1 x eSATA 3Gb/s
S/PDIF in1 x Optical, 1 x Coaxial
LightingRGB

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Questions about this item

How do I install the AM4 CPU and what step is often missed?

Align the triangle on the Ryzen processor with the socket corner, lower the retention arm fully, then update the BIOS via the Flash BIOS Button using a USB key before first boot — skipping the update can leave newer CPUs unsupported

What maintenance or replacement will the Wi-Fi module need later?

The onboard Wi-Fi delivers AC speeds up to 433 Mbps and is soldered to the board; if wireless performance degrades or newer standards are required, a PCIe x1 or USB Wi-Fi adapter must be added instead

What limit appears first under sustained heavy loads?

The VRM heatsink area can become the thermal bottleneck during prolonged all-core workloads, especially with higher-wattage Ryzen CPUs, because the board uses a 2 oz copper PCB without active VRM cooling

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