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Compact Mini ITX motherboard with dark heatsinks and mounted CPU

ASUS

ASUS ROG STRIX Z890-I GAMING WIFI Intel motherboard with Ultra 9 285K CPU

SKU CH-NHMG-WTESY

Mini-ITX Z890 board paired with a 285K CPU, two DDR5 slots up to 128 GB, dual PCIe 5.0 M.2, Thunderbolt 4 and 2.5 Gb Ethernet

  • ProcessorIntel Core Ultra Processors (Series 2)
  • ChipsetIntel Z890
  • Form factorMini ITX
  • CPU socketLGA 1851
  • Memory slot count2 × 288pin (DDR5)
  • Max supported RAM128 GB

Model ROG STRIX Z890-I GAMING WIFI

CPU +Ultra 9 285K

  • Ready for DDR5 speeds up to 9200 MT/s with dual-channel memory architecture
  • Two PCIe 5.0 x4 M.2 slots for high-speed storage expansion
  • Thunderbolt 4 ports plus USB 20 Gbps and 10 Gbps on the rear I/O
  • ESS SABRE 9260Q DAC with dedicated audio layers for clean sound
  • Intel Ultra 9 285K CPU with 36 MB L3 and 40 MB L2 cache included

Compact Z890 platform for Ultra 9 285K

This Mini‑ITX motherboard pairs the Intel Z890 chipset with a pre‑installed Core Ultra 9 285K processor in the LGA 1851 socket. Two DDR5 slots support up to 128 GB in dual‑channel mode and speeds beyond 9200 MT/s when overclocked. The board targets builders who need full Z890 feature set in a small chassis.

Sustained load on 125 W Arrow Lake silicon

The 285K runs at a 125 W base power with 36 MB L3 and 40 MB L2 cache to keep data close during long renders or compiles. Dual PCIe 5.0 M.2 slots and a PCIe 5.0 x16 slot maintain bandwidth for storage and graphics without throttling. VRM cooling and Fan Xpert 4 with AI Cooling II manage power delivery over extended sessions.

Thermals and acoustics in daily use

AIO pump and chassis fan headers plus an Extra Flow header let builders tune airflow for the compact layout. ROG Strix Hive II audio with ESS SABRE9260Q DAC and dedicated PCB layers isolates analogue signals from digital noise. Rear I/O includes two Thunderbolt 4 ports, 2.5 Gb Ethernet and Wi‑Fi for clean connectivity.

How it compares

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

Price $1,372.99
Pricier than about 94% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASUS
Model nameROG STRIX Z890-I GAMING WIFI+Ultra9 285K
Processor
ProcessorIntel Core Ultra Processors (Series 2)
CPU socketLGA 1851
ChipsetIntel Z890
Memory
Memory slot count2 × 288pin (DDR5)
Max supported RAM128 GB
Memory channelsDual Channel
Storage
SATA ports2 x SATA 6Gb/s
SATA and RAID support0/1
Ports & slots
PCIe 5.0 x16 slotsIntel Core Ultra Processors(Series 2)*
1 x PCIe 5.0 x16 slot (supports x16 mode)
Onboard USB headers1 x USB 20 Gbit/s connector (supports USB Type-C)
1 x USB 5 Gbit/s header supports 2 additional
USB 5 Gbit/s ports
Power
Power connectors1 × 24-pin Main Power connector
1 × 8-pin +12 V CPU Power connector
Size & build
Form factorMini ITX
Width and length6.7 in × 6.7 in
Compatibility
Windows 11 support(22H2 later)
More details
BIOS256 Mb Flash ROM, UEFI AMI BIOS

Other versions of this model

5 more in the same range

Questions about this item

How much power does the Ultra 9 285K CPU draw under sustained load?

The Intel Ultra 9 285K processor has a base power of 125W, so sustained workloads will draw around that level and require adequate cooling.

Which DDR5 memory speeds are officially validated for this Z890 board?

The board supports DDR5 speeds from 4400 up to 9200 MT/s (OC) across its two 288-pin slots, with a maximum capacity of 128GB in dual-channel mode.

Will my existing SATA SSDs and 2.5Gb Ethernet cable work with the rear I/O and internal headers?

Yes, the board provides two SATA 6Gb/s ports for drives and an Intel 2.5Gb Ethernet port on the rear I/O for wired networking.

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