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ATX motherboard in dark grey with yellow accents and Wi-Fi antenna

ASUS

ASUS TUF GAMING B550-PLUS (WI-FI) AMD motherboard

SKU CH-KJKC-WCPXD

An AMD B550 ATX motherboard with Socket AM4 supporting up to 128GB DDR4 and integrated Wi-Fi

  • CPU socketSocket AM4
  • ChipsetAMD B550
  • Max supported RAM128 GB
  • Socket AM4 ready for compatible AMD processors
  • AMD B550 chipset provides modern platform features
  • DDR4 memory support up to 128GB capacity
  • ATX form factor fits standard PC cases
  • Includes WiFi antenna for wireless connectivity

Socket AM4 AMD B550 DDR4 128GB ATX Motherboard

The ASUS TUF GAMING B550-PLUS (WI-FI) is a Socket AM4 motherboard built on the AMD B550 chipset. It supports DDR4 memory up to a maximum capacity of 128GB. The ATX form factor fits standard desktop cases for gaming or workstation builds. Integrated Wi-Fi is included for wireless connectivity.

Thermals noise and power draw

The board uses a robust power delivery design with military-grade components to handle sustained loads. Heatsinks on the VRM and chipset help dissipate heat during extended gaming sessions. Fan headers support PWM control for quiet operation at low speeds. Power draw scales with the installed CPU and memory configuration.

Build quality connectors and mounting

The TUF series features reinforced PCIe slots and a stainless-steel back I/O panel for durability. Included accessories are a CMOS battery, one SATA cable, a chassis I/O back panel and a WiFi antenna. The ATX mounting hole pattern aligns with standard chassis standoffs. No original packaging or additional accessories are supplied.

How it compares

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

Price $148.99
Cheaper than about 62% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Product lineASUS TUF GAMING B550-PLUS (WI-FI)
Model nameASUS TUF GAMING B550-PLUS (WI-FI)
Processor
CPU socketSocket AM4
ChipsetAMD B550
Memory
Max supported RAM128 GB

Questions about this item

How is the motherboard installed into a case, and what step is often missed?

Mount the ATX board using the nine standard screw holes, connect the 24-pin and 8-pin power cables, then attach the supplied I/O back panel before securing the board — skipping the back panel is the common oversight.

What maintenance or replacement will this motherboard need later?

The included CMOS battery will eventually lose charge; replace it with a new coin cell when the system forgets BIOS settings or the clock drifts.

What limit appears first under sustained heavy loads?

The DDR4 memory ceiling of 128GB is the hard capacity limit; once populated, no further memory can be added regardless of workload.

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