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Green Micro ATX motherboard with silver LGA 1151 socket and black DDR4 slots

ASUS

ASUS PRIME B250M-A LGA 1151 B250 DDR4 64GB Micro ATX Intel motherboard

SKU CH-7E9J-DFQ4K

Supports LGA 1151 CPUs with Intel B250 chipset, DDR4 up to 64 GB in a Micro ATX form factor

  • CPU socketLGA 1151
  • ChipsetIntel B250
  • Max supported RAM64 GB
  • LGA 1151 socket fits compatible 6th and 7th generation Intel Core processors
  • Intel B250 chipset provides stable platform features for everyday computing tasks
  • Supports up to 64GB DDR4 memory for responsive multitasking performance
  • Micro ATX form factor fits compact cases while retaining essential expansion slots
  • Includes SATA cable and I/O shield for immediate storage connectivity

Socket LGA 1151 Micro ATX Board

The ASUS PRIME B250M-A is an Intel B250 motherboard built for the LGA 1151 socket in a Micro ATX layout. It supports DDR4 memory up to a maximum of 64GB and includes a single SATA cable and I/O shield. The board is supplied new and ready for installation into compatible chassis.

Builders Upgrading LGA 1151 Systems

This board suits anyone replacing a failed B250 motherboard or assembling a fresh system around an existing LGA 1151 processor and DDR4 modules. Buyers who need a different CPU socket, a newer chipset, or more than 64GB of memory capacity should look elsewhere. It is not intended for platforms that require a different pin layout or memory generation.

64GB DDR4 Memory Ceiling

The single specification that determines fit is the 64GB maximum memory limit imposed by the B250 chipset. If the planned build requires more than 64GB of system RAM, this motherboard cannot meet that requirement. Verify the intended CPU and memory kit against this ceiling before purchase.

How it compares

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

Price $75.99
Cheaper than about 65% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASUS
Model nameASUS PRIME B250M-A
Processor
CPU socketLGA 1151
ChipsetIntel B250
Memory
Max supported RAM64 GB

Questions about this item

How do I install the ASUS PRIME B250M-A into a Micro ATX case, and what step is often missed?

Mount the board using the Micro ATX screw holes, fit the supplied I/O back panel before securing the motherboard, then connect the 24-pin and 4-pin power cables; the step often missed is installing the I/O shield first.

What maintenance or replacement will the ASUS PRIME B250M-A need over time?

The board ships with a metal battery included; when BIOS settings stop saving, that battery will need replacement.

What limit appears first on the ASUS PRIME B250M-A during sustained heavy workloads?

Memory capacity tops out at 64GB DDR4, so memory-intensive tasks will hit that ceiling before other board limits.

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