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ATX motherboard with silver heatsinks and integrated I/O cover, LGA 1851 socket, four DDR5 slots, multiple M.2 heatsinks

ASUS

ASUS ROG STRIX Z890-A GAMING WIFI S + Core Ultra 9 285K Intel motherboard

SKU CH-56ZP-WRKZ8

A Z890 motherboard paired with a Core Ultra 9 285K CPU, delivering 16+2+1+2 power stages, DDR5 up to 9066 MT/s, five M.2 slots, WiFi 7, 2.5Gbps LAN.

  • ChipsetIntel Z890
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Max supported RAM192 GB
  • Memory channelsDual Channel
  • Memory highlightsSupport up to 9066+MT/s (OC), Non-ECC, Un-buffered ,Clocked

Model ROG STRIX Z890-A GAMING WIFI S

CPU +Ultra 9 285K

  • AI-ready platform with Intel Core Ultra 9 285K and Z890 chipset
  • Robust 16+2+1+2 power stages rated up to 90A for stable delivery
  • DDR5 memory support up to 9066 MT/s and 192GB capacity
  • WiFi 7, Bluetooth 5.4 and 2.5Gbps LAN for fast connectivity
  • Five M.2 slots including PCIe 5.0 x4 and four PCIe 4.0 x4

Ready for Advanced AI PCs

This bundle pairs the ROG STRIX Z890-A GAMING WIFI S motherboard with the Intel Core Ultra 9 285K processor. The board uses the Intel Z890 chipset and an LGA 1851 socket ready for Intel Core Ultra Series 2 CPUs. It targets enthusiasts building high-performance AI workstations or gaming rigs that need strong compute and fast connectivity.

Check LGA 1851 socket and DDR5 memory compatibility

Your existing cooler must mount on the LGA 1851 socket pattern. The board provides four 288-pin DDR5 slots supporting up to 192 GB in dual-channel mode with speeds up to 9066 MT/s when overclocked. Verify that your power supply includes the required ProCool II connectors for the 16+2+1+2 power-stage design. Ensure your chassis fits an ATX motherboard and has clearance for the large heatsinks and L-shaped heatpipe.

Thermals noise and power draw in normal use

The Core Ultra 9 285K carries a 125 W base power rating and uses a 3 nm process with 36 MB L3 and 40 MB L2 cache. The motherboard uses massive heatsinks, high-conductivity thermal pads and an L-shaped heatpipe to dissipate heat from the 90 A and 80 A power stages. AI Cooling II manages the five 4-pin chassis fan headers, the CPU fan header, the CPU OPT header and the AIO pump header to balance airflow and acoustics under load.

How it compares

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

Price $1,386.99
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-A GAMING WIFI S+Ultra9 285K
Processor
ChipsetIntel Z890
Memory
Memory slot count4 × 288pin (DDR5)
Max supported RAM192 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsIntel Core Ultra Processors(Series 2)*
M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 5.0 x4 mode)
M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
Intel Z890 Chipset
M.2_3 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
M.2_4 slot (Key M), type 2280/22110 (supports PCIe 4.0 x4 mode)
M.2_5 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 & SATA modes)
SATA and RAID support* Intel Rapid Storage Technology supports PCIe RAID 0/1/5/10, SATA RAID 0/1/5/10, M.2 slot from CPU only supports RAID 0/1/5.
Audio & video
Sound channelsROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080*
- Impedance sense for front and rear headphone outputs
- Supports: Jack-detection, Multi-streaming, Front Panel MIC Jack-retasking
- High quality 120 dB SNR stereo playback output and 110 dB SNR recording input
- Supports up to 32-Bit/384 kHz playback on front panel
Audio Features
- SupremeFX Shielding Technology
- Savitech SV3H712 AMP
- Rear optical S/PDIF out port
- Premium audio capacitors
- Audio cover
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slotsIntel Core Ultra Processors (Series 2)
1 x PCIe 5.0 x16 slot
PCIe 4.0 x16 slotsIntel Z890 Chipset
1 x PCIe 4.0 x16 slot (supports x4 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
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
2 × 8-pin +12 V CPU Power connectors
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 support(22H2 later)
More details
BIOS256 Mb UEFI AMI BIOS

Other versions of this model

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Questions about this item

Does the bundle include a CPU cooler or must I buy one separately?

The Core Ultra 9 285K is supplied as a processor only with no cooling device in the box, so a compatible LGA 1851 cooler must be purchased separately.

Which DDR5 speed should I target for the 192 GB, four-slot limit?

The board supports up to 9066 MT/s when overclocked, but the rated XMP ceiling depends on the memory kit you choose; any DDR5 CUDIMM kit within the 192 GB total will run at its rated profile.

What does the 125 W base power figure mean for daily thermals?

The 125 W rating is the processor base power; sustained loads can draw more, so pair the CPU with a cooler rated for at least that TDP and use the board's 16+2+1+2 90 A power stages for stable delivery.

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