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Large rectangular E-ATX motherboard dark finish metal heatsinks visible LGA 1200 socket DDR4 slots SATA ports rear I/O shield included

ASUS

ASUS ROG MAXIMUS XII EXTREME Intel Z490 E-ATX Motherboard

SKU CH-22K3-KRNS6

E-ATX board with LGA 1200 socket, Intel Z490 chipset and DDR4 memory support up to 128 GB

  • CPU socketLGA 1200
  • ChipsetIntel Z490
  • Max supported RAM128 GB
  • Supports 128GB DDR4 memory for heavy workloads
  • LGA 1200 socket fits compatible Intel processors
  • Intel Z490 chipset enables high-performance desktop features
  • E-ATX form factor provides extensive expansion space
  • Includes SATA cable for storage connectivity

Built for LGA 1200 systems

The ASUS ROG MAXIMUS XII EXTREME is an Intel Z490 motherboard in E-ATX form factor. It supports LGA 1200 processors and DDR4 memory up to 128GB. The board ships with a rear I/O panel and one sata cable included.

Enthusiasts needing maximum memory capacity

This board suits builders who want the Z490 chipset feature set and the full 128GB DDR4 limit. Buyers who need a smaller form factor for compact cases should look elsewhere. Systems requiring a different CPU socket are not compatible with this model.

Maximum memory decides the fit

The 128GB DDR4 ceiling is the single specification that determines whether this motherboard matches the build plan. Verify that the intended processor uses the LGA 1200 interface before purchase.

How it compares

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

Price $275.99
Pricier than about 89% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASUS
Model nameASUS ROG MAXIMUS XII EXTREME
Processor
CPU socketLGA 1200
ChipsetIntel Z490
Memory
Max supported RAM128 GB

Questions about this item

Does the board ship with its original box and every accessory shown in the product photos?

The unit is supplied without original packaging; the package contains the motherboard, one SATA cable, the metal I/O back panel and the CMOS battery only.

Should I buy a 128 GB kit or a smaller DDR4 kit for this Z490 board?

The board supports up to 128 GB of DDR4; choose the capacity that matches your workload and budget.

What does the 128 GB maximum memory figure mean once the board is installed in a system?

It sets the total DDR4 capacity the four slots can address; you cannot exceed it regardless of the modules you install.

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