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Green rectangular Micro-ATX board with black slots, silver heatsinks and rear I/O panel

MSI

MSI B550M PRO-VDH AMD motherboard

SKU CH-BMFJ-564HG MPN B550M PRO-VDH

Micro-ATX AM4 board supports Ryzen 3000, 4000 and 5000 CPUs with dual M.2 slots, PCIe 4.0 x16 and 2.5G LAN

  • CPU Socket TypeAM4
  • ChipsetAMD B550
  • South BridgeAMD B550
  • Number of Memory Slots4x288pin (DDR4)
  • Maximum Memory Supported128GB
  • Channel SupportedDual Channel

Option B550M PRO-VDH

Struck-through versions exist but are not stocked here.

  • Supports Ryzen 5000 4000 3000 series CPUs on AM4 socket
  • PCIe 4.0 x16 slot plus M.2 with PCIe 4.0 x4 for high bandwidth storage
  • Four DDR4 slots up to 128 GB dual channel memory capacity
  • 5 Gbps LAN plus four USB 3.2 Gen 1 ports for fast wired connectivity
  • Steel Armor protects graphics cards while M.2 Shield Frozr cools SSDs

AM4 Micro-ATX for Ryzen Builds

The MSI B550M PRO-VDH is a Micro-ATX motherboard built around the AMD B550 chipset and AM4 socket. It supports Ryzen 5000, 4000 and 3000 series processors out of the box. The board targets mainstream system builders who need a compact foundation with modern connectivity.

Dual M.2 and 128 GB DDR4 Headroom

Four DDR4 slots accept up to 128 GB of memory in dual-channel mode. Storage options include one M.2 slot wired for PCIe 4.0 x4 and a second for PCIe 3.0 x4, plus four SATA 6 Gb/s ports with RAID 0, 1 and 10 support. The primary x16 slot runs at PCIe 4.0, while a second x16 slot operates at PCIe 3.0 and a third at PCIe 2.0. Two additional x1 slots round out expansion.

Steel Armour Slot and M.2 Shield Frozr

A reinforced PCIe x16 slot protects heavy graphics cards from bending and EMI. The M.2 Shield Frozr heatsink covers the primary M.2 drive to limit thermal throttling under sustained loads. Rear I/O supplies 2.5 GbE LAN, four USB 3.2 Gen 1 Type-A ports, two USB 2.0 ports, HDMI, DisplayPort and VGA outputs, plus Realtek ALC892/897 audio jacks.

Highlights

  • Supports Ryzen 5000 4000 3000 series CPUs on AM4 socket
  • PCIe 4.0 x16 slot plus M.2 with PCIe 4.0 x4 for high bandwidth storage
  • Four DDR4 slots up to 128 GB dual channel memory capacity
  • 5 Gbps LAN plus four USB 3.2 Gen 1 ports for fast wired connectivity
  • Steel Armor protects graphics cards while M.2 Shield Frozr cools SSDs

Specifications

BrandMSI
SeriesPRO
CPU Socket TypeAM4
ChipsetAMD B550
South BridgeAMD B550
Number of Memory Slots4x288pin (DDR4)
Maximum Memory Supported128GB
Channel SupportedDual Channel
Buffer SupportedUn-buffered
PCI Express 4.0 x161 x PCI Express 4.0 x16
PCI Express 3.0 x161 x PCI Express 3.0 x16
PCI Express 2.0 x161 x PCI Express 2.0 x16
PCI Express x161 x PCI Express x16
PCI Express x12 x PCI Express x1
Serial ATA (SATA)4 x SATA 6Gb/s
M.21 x M.2 (Support PCIe 3.0 x4) / 1 x M.2 (Support PCIe 4.0 x4)
SATA RAID0/1/10
Audio ChipsetRealtek ALC892/ALC897
BluetoothNo
Back I/O Ports4 x USB 3.2 Gen 1 Type-A, 2 x USB 2.0, 1 x DisplayPort, 1 x VGA, 1 x HDMI, Realtek ALC892/ALC897 Audio ports
COM1
Video PortsD-Sub + HDMI + Display Port
HDMI1 x HDMI
DisplayPort1 x DisplayPort
USB 3.07 x USB 3.0
USB 1.1/2.06 x USB 2.0
USB Type-C1 x USB Type-C port, with USB 3.2 Gen 1 support
Onboard USB1 x USB 3.2 + 4 x USB 2.0
Form FactorMicro ATX
LED LightingNone RGB
Shipping weight1.00 kg
Package size279 × 274 × 64 mm

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Can I keep my current DDR4 memory when moving to this board?

The board provides four 288-pin DDR4 slots supporting up to 128 GB in dual-channel mode, so existing DDR4 modules can be reused.

How do I verify the PCIe 4.0 x16 slot is running at full speed after build?

In the BIOS or OS device manager, confirm the graphics card negotiates a Gen 4.0 x16 link; the Steel Armor slot is wired for PCIe 4.0.

What comes in the box and what must I source separately?

The motherboard includes the I/O shield, SATA cables and M.2 screws; you will need to supply a compatible AM4 processor, DDR4 memory, storage drives and a power supply.

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