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ASUS ROG Maximus Z890 Extreme motherboard
ASUS

ASUS ROG Maximus Z890 Extreme

Socket:
LGA1851
Chipset:
Z890
Form Factor:
E-ATX
Memory:
4x DDR5, up to 256GB
M.2 Slots:
4 onboard + 2 on Q-DIMM.2 card
Network:
Wi-Fi 7 + 10G/2.5G LAN

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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.

Manufacturer: ASUS Last updated: September 11, 2026

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ASUS ROG Maximus Z890 Extreme Review

The ROG Maximus Z890 Extreme is ASUS's absolute top-tier Intel Core Ultra Series 2 board, an E-ATX design with dual PCIe 5.0 x16 slots, six M.2 slots, and dual 2.5G/10G LAN, positioned as the direct Intel counterpart to the ROG Crosshair X870E Extreme on AM5.

ASUS does not publish an exact VRM phase count for this board, but it is built with the same extreme-tier design philosophy as the Crosshair X870E Extreme, intended for sustained Core Ultra 9 operation and aggressive memory overclocking. Four DDR5 DIMM slots (CUDIMM-capable) support up to 256GB total capacity, with overclocked speeds rated up to 9200+ MT/s. Two PCIe 5.0 x16 slots from the CPU support x16, x8/x8, or x8/x4/x4 configurations, plus a PCIe 4.0 x4 slot from the chipset. Storage covers six total M.2 slots: four standard slots plus two additional via the ROG Q-DIMM.2 expansion module. Dual LAN combines an Intel 2.5Gb controller with a Marvell AQtion 10Gb controller, alongside Intel Wi-Fi 7 rated up to 5.8Gbps. Audio uses ASUS's ROG SupremeFX ALC4082 codec with 7.1-channel surround. Against the ASUS ROG Crosshair X870E Extreme in this batch, the Maximus Z890 Extreme mirrors its extreme-tier positioning on the Intel side, offering the same E-ATX form factor and dual 10G/2.5G LAN setup for buyers who specifically want Intel's Core Ultra Series 2 platform instead of AMD AM5.

Power Delivery and VRM Design

ASUS does not publish an exact VRM phase count for this board, but it is built with the same extreme-tier design philosophy as the Crosshair X870E Extreme, intended for sustained Core Ultra 9 operation and aggressive memory overclocking.

Memory Support

Four DDR5 DIMM slots (CUDIMM-capable) support up to 256GB total capacity, with overclocked speeds rated up to 9200+ MT/s.

Expansion and Storage

Two PCIe 5.0 x16 slots from the CPU support x16, x8/x8, or x8/x4/x4 configurations, plus a PCIe 4.0 x4 slot from the chipset. Storage covers six total M.2 slots: four standard slots plus two additional via the ROG Q-DIMM.2 expansion module.

Connectivity

Dual LAN combines an Intel 2.5Gb controller with a Marvell AQtion 10Gb controller, alongside Intel Wi-Fi 7 rated up to 5.8Gbps. Audio uses ASUS's ROG SupremeFX ALC4082 codec with 7.1-channel surround.

Comparison to Alternatives

Against the ASUS ROG Crosshair X870E Extreme in this batch, the Maximus Z890 Extreme mirrors its extreme-tier positioning on the Intel side, offering the same E-ATX form factor and dual 10G/2.5G LAN setup for buyers who specifically want Intel's Core Ultra Series 2 platform instead of AMD AM5.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Best for

  • Buyers who want ASUS's single best Intel Z890 board regardless of price
  • Builds that want dual 10G/2.5G LAN and six M.2 slots

Not for

  • Anyone on a mainstream or high-end (rather than extreme) budget
  • Builds where a Maximus Hero or Strix board already covers the needed features

Specifications

What these specs mean

Identity

Model NumberROG Maximus Z890 Extreme
Form FactorE-ATX

Platform and CPU compatibility

PlatformIntel
SocketLGA1851
ChipsetZ890
Newest CPU Family SupportedCore Ultra Series 2
Oldest CPU Family SupportedCore Ultra Series 2
CPU Overclocking SupportedYes

Memory

Memory TypeDDR5
Memory Slots4
Max Memory256 GB
Max Rated Memory Speed9200 MT/s
CUDIMM SupportYes
ECC Memory SupportNone

Expansion & Connectivity

M.2 Slots4
PCIe 5.0 SupportYes
Wi-Fi OnboardYes

M.2 storage

M.2 PCIe 5.0 Slots3
M.2 PCIe 4.0 Slots1
M.2 CPU Attached Slots4
M.2 Slots On Included Card2

Other storage

SATA Ports4

PCIe expansion

PCIe x16 Slots2
Primary Graphics Slot GenPCIe 5.0
Graphics Slot Bifurcationx8/x8

Rear USB

Rear USB4 or TB Ports2
Rear USB 20Gbps Ports1
Rear USB 10Gbps Ports7

Internal headers

Front USB-C Header Speed20Gbps
Front USB-C Power Delivery60 W
Fan and Pump Headers8
ARGB Headers3

Power delivery

Vcore Power StagesExtreme-tier design (phase count not officially disclosed)
EPS 12V ConfigurationTwo 8-pin

Builder features

POST Code DisplayYes
BIOS FlashbackYes
Tool Free M.2 RetentionYes

Network and audio

Max Ethernet Speed10 Gbps
Ethernet Port Count2
Wi-Fi StandardWi-Fi 7
Bluetooth Version5.4
Audio CodecROG SupremeFX ALC4082 + ESS ES9219 DAC

FAQs

What are the key specifications of the ASUS ROG Maximus Z890 Extreme (LGA1851/Intel Z890/E-ATX/Six M.2 Slots/Dual 2.5G+10G LAN/Wi-Fi 7)?

Key specs for the ASUS ROG Maximus Z890 Extreme: Chipset Z890, Socket LGA1851, Socket Type LGA1851, Max Memory 256 GB, Form Factor E-ATX, VRM Extreme-tier design (phase count not officially disclosed).

Will the ASUS ROG Maximus Z890 Extreme (LGA1851/Intel Z890/E-ATX/Six M.2 Slots/Dual 2.5G+10G LAN/Wi-Fi 7) work with my current setup?

The ASUS ROG Maximus Z890 Extreme (LGA1851/Intel Z890/E-ATX/Six M.2 Slots/Dual 2.5G+10G LAN/Wi-Fi 7) lists Socket is LGA1851. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the ASUS ROG Maximus Z890 Extreme (LGA1851/Intel Z890/E-ATX/Six M.2 Slots/Dual 2.5G+10G LAN/Wi-Fi 7) best suited to?

Best suited to: Buyers who want ASUS's single best Intel Z890 board regardless of price; Builds that want dual 10G/2.5G LAN and six M.2 slots.

What are the drawbacks of the ASUS ROG Maximus Z890 Extreme (LGA1851/Intel Z890/E-ATX/Six M.2 Slots/Dual 2.5G+10G LAN/Wi-Fi 7)?

Not the best fit for: Anyone on a mainstream or high-end (rather than extreme) budget; Builds where a Maximus Hero or Strix board already covers the needed features.

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