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ASUS

ASUS TUF GAMING B550M-PLUS WIFI II AMD motherboard

SKU CH-1WPY-FHTFH

Micro-ATX AM4 board with B550 chipset, DDR4 to 128 GB, PCIe 4.0 x16, dual M.2 slots and Wi-Fi antenna included

  • CPU Socket TypeAM4
  • CPU TypeRyzen Series
  • Number of Memory SlotsDDR4
  • Maximum Memory Supported128GB
  • PCI Express x161
  • PCI Slots1 x PCI Slot
  • Supports up to 128GB DDR4 memory for multitasking headroom
  • PCI Express 4.0 x16 slot enables modern GPU bandwidth
  • Two M.2 slots provide fast storage expansion
  • Micro ATX form factor fits compact builds
  • Integrated Wi-Fi antenna and I/O shield included

AM4 MicroATX Board for Ryzen Builds

The ASUS TUF GAMING B550M-PLUS WIFI II is a MicroATX motherboard built around the AMD B550 chipset and AM4 socket. It supports Ryzen series processors and accepts up to 128GB of DDR4 memory across its slots. The board includes one PCI Express 4.0 x16 slot, one additional PCI slot and two M.2 sockets for storage expansion. It ships with the I/O shield, SATA cables, M.2 hardware and a Wi-Fi antenna.

Sustained Operation With PCIe 4.0

The single PCI Express 4.0 x16 slot delivers full bandwidth to a discrete graphics card or high-speed add-in card during extended workloads. Two M.2 slots allow fast storage devices to maintain throughput without sharing lanes with the primary slot. The B550 chipset manages connectivity for the RJ45 port, DisplayPort output and USB 3.1 connection while the board handles memory speeds within the DDR4 specification. Builders who need more than one full-length PCIe 4.0 x16 slot should consider a larger form factor.

Thermals and Power in Daily Use

The MicroATX layout concentrates components, so case airflow directly affects VRM and chipset temperatures during long sessions. No bundled cooling accessories are included beyond the standard I/O shield, so builders must rely on their chassis fans and CPU cooler to move air across the board. Power draw follows the chosen Ryzen processor and attached devices; the board itself adds minimal overhead. Users who prefer a quieter system should pair this motherboard with a low-noise CPU cooler and well-ventilated case.

Highlights

  • Supports up to 128GB DDR4 memory for multitasking headroom
  • PCI Express 4.0 x16 slot enables modern GPU bandwidth
  • Two M.2 slots provide fast storage expansion
  • Micro ATX form factor fits compact builds
  • Integrated Wi-Fi antenna and I/O shield included

Specifications

BrandASUS
SeriesTUF
ModelTUF GAMING B550M-PLUS WIFI II
CPU Socket TypeAM4
CPU TypeRyzen Series
Number of Memory SlotsDDR4
Maximum Memory Supported128GB
PCI Express x161
PCI Slots1 x PCI Slot
RJ451 x RJ45
DisplayPort1 x DisplayPort
USB 3.11 x USB 3.1
Form FactorMicro ATX

Questions about this item

How much power does the B550 chipset draw under sustained load?

The B550 chipset is rated for low thermal output and uses passive cooling, so sustained all-day operation adds minimal heat and power draw inside a Micro ATX case.

Which DDR4 memory kit and CPU cooler must I already own to install this board?

You need DDR4 DIMMs up to 128 GB total and an AM4-compatible cooler; the board includes the I/O shield, SATA cables, M.2 standoffs and Wi-Fi antenna, so no extra mounting hardware is required.

Will my existing SATA SSDs and ESATA drives work with the two M.2 slots and SATA ports?

Yes, the board provides standard SATA ports for your current SSDs and ESATA drives, while the two M.2 slots accept additional SATA or PCIe 4.0 x4 storage without adapter brackets.

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