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Black ATX motherboard with silver heatsinks, two DIMM slots and a boxed Intel Core Ultra 7 265K CPU alongside

ASUS

ASUS ROG MAXIMUS Z890 APEX Intel motherboard & Core Ultra 7 265K CPU Combo

SKU CH-G09J-B8JKJ

Z890 ATX motherboard paired with a Core Ultra 7 265K CPU, DDR5 to 9600 MT/s, 5G LAN, WiFi 7, Thunderbolt and three PCIe 5.0 M.2 slots

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

Motherboard ROG MAXIMUS Z890 APEX

CPU +Ultra 7 265K

  • Ready for advanced AI PCs with Intel Core Ultra 265K 3nm processor
  • AI overclocking, cooling and networking simplify setup and boost performance
  • Robust 22 plus 2 plus 1 plus 2 stage power design with 110A, 90A and 80A stages
  • DDR5 memory up to 9600 MT/s supported via DIMM Fit and AEMP III
  • WiFi 7, Bluetooth 5.4 and 5Gbps LAN deliver fast wireless and wired connectivity

LGA 1851 AI-ready platform

The ASUS ROG MAXIMUS Z890 APEX motherboard paired with the Intel Core Ultra 7 265K processor delivers a high-end Intel LGA 1851 platform built for advanced AI workloads. The 3nm Arrow Lake CPU operates at a 125W base power with 30MB L3 cache and 36MB L2 cache. Integrated Intel Graphics provide display output without a discrete card. This combination targets enthusiasts who want AI acceleration, overclocking headroom and extensive connectivity in a single package.

DDR5 9600 MT/s and PCIe 5.0 limits

Dual-channel DDR5 memory tops out at 128GB across two 288-pin slots with support for speeds up to 9600 MT/s when overclocked. The primary PCIe 5.0 x16 slot and first M.2 socket share CPU lanes, so populating M.2_3 forces the top graphics slot to x8 and the second to x4. Four SATA 6Gb/s ports and three additional M.2 slots (one PCIe 5.0, two PCIe 4.0) provide storage flexibility within those lane constraints. WiFi 7 and Bluetooth 5.4 handle wireless duties.

22+2+1+2 power stages and 5G LAN headroom

The 22+2+1+2 phase VRM uses 110A, 90A and 80A power stages to feed the 265K and high-speed memory with ample overhead for sustained loads. Dual Thunderbolt 4 ports, one 20Gbps USB-C, four 10Gbps Type-A and four 5Gbps Type-A ports on the rear I/O cover most peripheral needs. Onboard headers add another 20Gbps USB-C, one 10Gbps USB-C, four 5Gbps and four 2.0 ports. The 5Gbps Ethernet jack and WiFi 7 ensure network throughput matches the platform's I/O capacity.

How it compares

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

Price $989.99
Pricier than about 93% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASUS
Product lineROG MAXIMUS Z890 APEX+Ultra 7 265K
Model nameROG MAXIMUS Z890 APEX+Ultra 7 265K
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 ports4 x SATA 6Gb/s
M.2 slotsSupport Intel 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 2242/2260/2280 (supports PCIe 4.0 x4 mode)
M.2_3 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 modes)**
M.2_4 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 modes)**
Intel Z890 Chipset
DIMM.2_1 slot (Key M) via ROG DIMM.2, type 2230/2242/2260/2280/22110 (supports PCIe 4.0 x4 mode)
DIMM.2_2 slot (Key M) via ROG DIMM.2, type 2230/2242/2260/2280/22110 (supports PCIe 4.0 x4 mode)
**M.2_3 & M.2_4 share bandwidth with PCIEX16(
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
- Gold-plated audio jacks
- 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 Su
Connectivity
Maximum network speed5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slotsSupport Intel Core Ultra Processors(series 2)*
2 x PCIe 5.0 x16 slots (supports x16 or x8/x8 or x8/x4/x4 modes)**
Rear panel ports2 x Thunderbolt 4 ports (USB Type-C)
1 x USB 20 Gbit/s port (1 x USB Type-C)
4 x USB 10 Gbit/s ports (4 x Type-A)
4 x USB 5 Gbit/s ports (4 x Type-A)
1 x Wi-Fi Module
1 x Realtek 5Gb Ethernet port
2 x Gold-plated audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack button
1 x Clear CMOS button
1 x PS/2 keyboard/mouse combo port
Power
Power connectors1 × 24-pin Main Power connector
2 × 8-pin +12 V Power connector
1 × 8-pin PCIe Power connector
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 support(22H2 & later), Windows 10 64-bit (21H2 & later)
More details
BIOS2 × 256 Mb Flash ROM, UEFI AMI BIOS

Other versions of this model

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Questions about this item

Should I choose the 128 GB DDR5 maximum or a smaller kit for the two DIMM slots?

The board has two DDR5 slots supporting up to 128 GB total in dual-channel mode. A two-module kit matching that capacity fills both slots and enables the rated 9600+ MT/s overclocked speeds with XMP or AEMP III profiles.

What does the Core Ultra 7 265K 125 W base power mean for my cooling and VRM choice?

The CPU is rated at 125 W base power and uses the LGA 1851 socket. The motherboard provides 22+2+1+2 power stages rated at 110 A, 90 A, 90 A and 80 A respectively, with ProCool II connectors, MicroFine alloy chokes and metallic capacitors to handle sustained loads.

Which PCIe generation do the three M.2 slots use and how does bandwidth sharing work?

M.2_1 runs PCIe 5.0 x4, M.2_2 runs PCIe 4.0 x4, while M.2_3 and M.2_4 share bandwidth with the second PCIe 5.0 x16 slot. Enabling M.2_3 forces that slot to x4 and the primary to x8; enabling both M.2_3 and M.2_4 keeps the primary at x8 and the secondary at x4.

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