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Green rectangular Micro ATX motherboard with black PCIe slots, silver AM4 socket and four silver SATA ports

MSI

MSI B550M PRO-VDH AMD B550 motherboard 128GB DDR4 AM4 Micro ATX

SKU CH-ZVKS-248XV

Micro ATX board with AM4 socket, AMD B550 chipset and 128 GB DDR4 support for Ryzen CPUs

  • CPU Socket TypeSocket AM4
  • CPU TypeSupports AM4 socket 3rd Gen AMD Ryzen processors, and future
  • ChipsetAMD B550
  • Memory StandardSupport dual-channel DDR4 1866/2133/2400/2667/2800/2933/3000
  • Maximum Memory Supported128GB
  • PCI Slots1x PCIe 4.0/ 3.0 x16 slot (PCI_E1) 2x PCIe 3.0 x1 slots
  • Supports up to 128GB dual-channel DDR4 memory
  • PCIe 4.0 x16 slot enables high-speed graphics
  • Realtek ALC892/897 codec delivers 7.1-channel audio
  • Realtek 8111HN controller provides Gigabit LAN
  • Micro ATX form factor fits compact builds

Socket AM4 DDR4 foundation

The MSI B550M PRO-VDH is a micro-ATX motherboard built around the AMD B550 chipset for Socket AM4 processors. It accepts 3rd Gen AMD Ryzen CPUs and future Ryzen processors after a BIOS update. Four memory slots support dual-channel DDR4 up to 128GB across a wide range of speeds from 1866 to 4400+ MHz.

Expansion and connectivity focus

Builders who need a compact board with one full-length PCIe 4.0 x16 slot and two PCIe 3.0 x1 slots will fit here. The rear I/O provides 7.1-channel audio via Realtek ALC892/897 and a single Realtek 8111HN Gigabit LAN port. Internal headers add one USB 3.2 Gen 1 Type-C connector plus two USB 3.2 Gen 1 ports and six USB 2.0 ports. Storage includes two M.2 interfaces and four SATA III ports.

PCIe 4.0 x16 slot decides

The single PCIe 4.0/3.0 x16 slot is the specification that determines whether this board matches the graphics card and bandwidth plan. If the build requires a second full-speed x16 slot or more than two M.2 sockets, a different chipset or form factor is needed.

Highlights

  • Supports up to 128GB dual-channel DDR4 memory
  • PCIe 4.0 x16 slot enables high-speed graphics
  • Realtek ALC892/897 codec delivers 7.1-channel audio
  • Realtek 8111HN controller provides Gigabit LAN
  • Micro ATX form factor fits compact builds

Specifications

BrandMSI
SeriesMSI B550M PRO-VDH
ModelMSI B550M PRO-VDH
CPU Socket TypeSocket AM4
CPU TypeSupports AM4 socket 3rd Gen AMD Ryzen processors, and future AMD Ryzen processors with BIOS update
ChipsetAMD B550
Memory StandardSupport dual-channel DDR4 1866/2133/2400/2667/2800/2933/3000/3066/3200/3466/3600/3733/3866/4000/4133/4266/4400 + MHz memory
Maximum Memory Supported128GB
PCI Slots1x PCIe 4.0/ 3.0 x16 slot (PCI_E1)
2x PCIe 3.0 x1 slots
SATA RAID2XM.2 interface, 4xSATA III interface
Audio ChipsetRealtek ALC892/ALC897 Codec
7.1-Channel High Definition Audio
LAN Chipset1x Realtek 8111HN Gigabit LAN controller
Onboard USBAMD B550 Chipset
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)
AMD Processor
4x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel

Questions about this item

What size case and mounting holes does the Micro ATX board need?

The board uses the Micro ATX form factor, so it fits any case with matching standoff positions and the standard I/O shield cut-out; the package includes a chassis I/O back panel.

What is the correct order for seating the CPU, cooler and memory before the first power-on?

Install the AM4 processor, lock the lever, attach the cooler, then insert DDR4 modules into the dual-channel slots; the manual highlights that forgetting to connect the 8-pin CPU power cable is the most common oversight.

Which onboard components may need replacement after several years of use?

The Realtek ALC892/ALC897 audio codec and 8111HN Gigabit LAN controller are soldered and not user-replaceable; the socketed CMOS battery is the only part designed for periodic replacement.

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