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Green Micro ATX motherboard with AM5 socket and DDR5 slots

ASUS

ASUS PRIME B650M-K AMD B650 DDR5 128GB Micro ATX Motherboard

SKU CH-320A-3WBYE

Micro-ATX board for Socket AM5 CPUs with AMD B650 chipset and DDR5 memory up to 128GB

  • CPU socketSocket AM5
  • ChipsetAMD B650
  • Max supported RAM128 GB
  • Supports up to 128GB DDR5 memory for high-capacity workloads
  • AM5 socket ready for compatible AMD processors
  • B650 chipset provides modern platform features
  • Micro ATX form factor fits compact chassis builds
  • Includes SATA cable and I/O shield for immediate installation

ASUS PRIME B650M-K AM5 DDR5 Motherboard

The ASUS PRIME B650M-K is a Socket AM5 motherboard built on the AMD B650 chipset with DDR5 memory support. It accommodates up to 128GB of system memory in a Micro ATX form factor. The board targets builders who want a current AMD platform in a compact layout.

Suits compact AM5 DDR5 builds; not for E-ATX cases

This board suits builders assembling a compact AM5 system where Micro ATX dimensions fit. It is not for buyers who need the expansion slots or physical space of a full-size E-ATX board. Builders requiring more than 128GB of memory should look at higher-capacity platforms.

128GB maximum DDR5 capacity

The single specification that decides fit is the 128GB maximum DDR5 memory limit. If the planned workload demands more memory than this ceiling, the board cannot meet the requirement. For workloads staying within 128GB, the capacity is sufficient.

How it compares

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

Price $156.99
Cheaper than about 60% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Product lineASUS PRIME B650M-K
Model nameASUS PRIME B650M-K
Processor
CPU socketSocket AM5
ChipsetAMD B650
Memory
Max supported RAM128 GB

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