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ATX motherboard with silver heatsinks and black PCB, paired with LGA 1851 CPU

ASUS

ASUS PRIME Z890-P WIFI Intel motherboard & Core Ultra 9 285K CPU

SKU CH-28GS-5ZRKG

LGA 1851 ATX motherboard and Core Ultra 9 285K CPU with DDR5 up to 8666 MT/s, PCIe 5.0 M.2, Thunderbolt 4, Wi-Fi 7 and 2.5 Gb Ethernet

  • CPU socketLGA 1851
  • ChipsetIntel Z890
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Max supported RAM256 GB
  • Memory channelsDual Channel

Model PRIME Z890-P WIFI

CPU +Ultra 9 285K

  • Ready for advanced AI workloads with Intel Core Ultra 9 285K processor
  • Robust 14+1+1+2 80A DrMOS power stages deliver stable CPU voltage
  • Optimised cooling via large VRM heatsinks and AI Cooling II fan control
  • One PCIe 5.0 M.2 slot plus three PCIe 4.0 M.2 slots for fast storage
  • Wi-Fi 7 and 2.5Gb Ethernet with Bluetooth 5.4 for high-speed networking

AI-Ready Platform

The ASUS PRIME Z890-P WIFI motherboard paired with the Intel Core Ultra 9 285K CPU targets builders who want an advanced AI PC foundation. The LGA 1851 socket accepts Intel Core Ultra Processors Series 2, while the Z890 chipset unlocks high-speed connectivity. Four DDR5 slots support up to 256GB of memory running at 8666+ MT/s when overclocked. This combination delivers the throughput needed for demanding AI workloads and heavy multitasking.

Sustained Power Delivery

A 14+1+1+2 phase design uses 80A DrMOS power stages, ProCool connectors, a 6-layer PCB, alloy chokes and durable capacitors to maintain stable voltage under continuous load. Large VRM heatsinks, dedicated M.2 and PCH heatsinks, plus hybrid fan headers managed by Fan Xpert 4 and AI Cooling II keep temperatures controlled during long rendering or compute sessions. The 125W processor stays fed without throttling, ensuring consistent output over hours rather than minutes.

Connectivity & Build

The rear I/O includes a Thunderbolt 4 USB Type-C port, one USB 10Gbps Type-A, two USB 5Gbps Type-A, four USB 2.0 Type-A, DisplayPort, HDMI, 2.5Gb Ethernet and Wi-Fi 7 with the ASUS WiFi Q-Antenna. Onboard headers add a USB 10Gbps Type-C connector, four USB 5Gbps and four USB 2.0 ports. Storage options cover one PCIe 5.0 M.2 slot with heatsink, three PCIe 4.0 M.2 slots, four SATA 6Gb/s ports and RAID 0/1/5/10 support. Audio uses a Realtek 7.1 codec with shielding and 24-bit/192 kHz playback.

How it compares

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

Price $1,150.99
Pricier than about 93% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASUS
Model namePRIME Z890-P WIFI+Ultra 9 285K
Processor
CPU socketLGA 1851
ChipsetIntel Z890
Memory
Memory slot count4 × 288pin (DDR5)
Max supported RAM256 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 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 2280/22110 (supports PCIe 4.0 x4 mode)
M.2_4 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 channelsRealtek 7.1 Surround Sound High Definition Audio CODEC*
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback
Audio Features
- Audio Shielding
- Premium audio capacitors
- Dedicated audio PCB layers
* 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
2 x PCIe 4.0 x16 slots (support x4 mode)
1 x PCIe 4.0 x16 slot (supports x1 mode)
Onboard USB headers1 x USB 10 Gbit/s connector (supports USB Type-C)
2 x USB 5 Gbit/s headers support 4 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 connector
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 support(22H2 & later)
More details
BIOS256 (128+128) Mb Flash ROM, UEFI AMI BIOS

Other versions of this model

5 more in the same range

Questions about this item

How hot or loud does the 14+1+1+2 80A DrMOS VRM get under sustained 125W load?

The board uses large VRM heatsinks, a 6-layer PCB and AI Cooling II via Fan Xpert 4 to manage heat from the 14+1+1+2 80A DrMOS stages during prolonged 125W CPU operation.

Which DDR5 memory kit speed should I have ready for the 8666+ MT/s XMP profile?

You need a DDR5 CUDIMM kit rated for 8666+ MT/s; the four 288-pin slots run dual-channel up to 256GB and support Intel XMP and ASUS AEMP III profiles.

Will my existing PCIe 4.0 GPU and SATA SSDs work without bottlenecks on the Z890 chipset lanes?

Yes — the chipset provides two PCIe 4.0 x16 slots wired x4, one PCIe 4.0 x16 slot wired x1, and four SATA 6Gb/s ports for legacy drives.

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