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ATX motherboard with black heatsinks and silver I/O shield

ASUS

ASUS ROG MAXIMUS XI EXTREME Z390 LGA 1151 Intel motherboard

SKU CH-4YB8-CGKFS

Z390 ATX board for LGA 1151 CPUs with DDR4 support up to 128 GB and a SATA cable included

  • CPU socketLGA 1151
  • ChipsetIntel Z390
  • Max supported RAM128 GB
  • Supports up to 128GB DDR4 memory for heavy multitasking
  • Intel Z390 chipset enables advanced overclocking features
  • LGA 1151 socket fits compatible 8th and 9th Gen Intel CPUs
  • ATX form factor fits standard full-size chassis
  • Includes SATA cable and rear I/O panel for basic setup

Product identity

The ASUS ROG MAXIMUS XI EXTREME is an ATX motherboard built around the Intel Z390 chipset for LGA 1151 processors. It supports DDR4 memory up to 128 GB and is supplied in new condition with a chassis I/O back panel and one SATA cable.

Who this suits

Builders assembling a high-end LGA 1151 system who need the full 128 GB DDR4 capacity and the feature set of the Z390 platform will find this board appropriate. Users who require a different socket, a smaller form factor, or integrated Wi-Fi and Bluetooth not listed here should consider other options.

Deciding specification

The LGA 1151 socket paired with the Intel Z390 chipset determines which processors and memory kits are compatible, making it the single specification that confirms whether this motherboard fits the build.

How it compares

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

Price $170.99
Pricier than about 76% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASUS
Model nameASUS ROG MAXIMUS XI EXTREME
Processor
CPU socketLGA 1151
ChipsetIntel Z390
Memory
Max supported RAM128 GB

Questions about this item

What memory standard does the Z390 chipset on this board use, and what is the maximum capacity it supports?

The board uses DDR4 memory and supports up to 128GB total capacity across its slots.

What case form factor and CPU cooler clearance does the ATX layout of this motherboard require?

It requires an ATX-compatible case and standard LGA 1151 cooler mounting holes for the socket.

How is the I/O back panel installed on this motherboard, and which step is commonly missed?

Fit the supplied metal I/O shield into the case cutout from the inside before lowering the board onto the standoffs.

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