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Black ATX motherboard with silver heatsinks, four DDR5 slots and a covered LGA 1851 socket

ASUS

ASUS ROG MAXIMUS Z890 HERO LGA 1851 Intel motherboard

SKU CH-Y023-K4K8A MPN ROG MAXIMUS Z890 HERO

Supports Intel Core Ultra Series 2 CPUs with DDR5 up to 9200 MT/s, WiFi 7, Thunderbolt and three PCIe 5.0 M.2 slots

  • CPU Socket TypeLGA 1851
  • CPU TypeIntel Core Ultra Processors (Series 2)
  • ChipsetIntel Z890
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardDDR5 9200 / DDR5 9066 / DDR5 9000 / DDR5 8933 / DDR5 8800 /
  • Maximum Memory Supported256GB
  • Ready for Intel Core Ultra Series 2 processors with LGA 1851 socket
  • 22 plus 2 plus 1 plus 2 power stages up to 110A for stable overclocking
  • DDR5 memory up to 9200 MT/s with NitroPath DRAM technology
  • Three PCIe 5.0 M.2 slots for high-speed storage expansion
  • WiFi 7 and 5Gbps plus 2.5Gbps LAN for fast networking

Intel LGA 1851 Platform

This ATX motherboard fits Intel Core Ultra Series 2 processors on the LGA 1851 socket with the Z890 chipset. Four DDR5 slots accept up to 256 GB in dual-channel mode. It targets builders who need strong overclocking headroom and extensive high-speed I/O for workstation or enthusiast workloads.

PCIe 5.0 and 4.0 Lane Distribution

The primary x16 slot runs at PCIe 5.0 x16 or x8/x4/x4; enabling M.2_3 or M.2_4 drops it to x8. A second x16 slot operates at PCIe 4.0 x4 from the chipset. One PCIe 4.0 x1 slot and four SATA 6 Gb/s ports complete the expansion map. Three M.2 sockets support 2242, 2260, 2280 and 22110 drives; the top slot uses CPU PCIe 5.0 x4, the others use chipset PCIe 4.0 x4.

22+2+1+2 Power Stages and Connectivity

The VRM uses 22 stages rated at 110 A, two at 90 A, one at 90 A and two at 80 A, fed by ProCool II headers. Rear I/O includes 5 Gbps and 2.5 Gbps Ethernet, WiFi 7, Thunderbolt 4 and multiple USB Type-C ports. 7.1-channel audio and AI-assisted overclocking, cooling and networking utilities round out the feature set.

Highlights

  • Ready for Intel Core Ultra Series 2 processors with LGA 1851 socket
  • 22 plus 2 plus 1 plus 2 power stages up to 110A for stable overclocking
  • DDR5 memory up to 9200 MT/s with NitroPath DRAM technology
  • Three PCIe 5.0 M.2 slots for high-speed storage expansion
  • WiFi 7 and 5Gbps plus 2.5Gbps LAN for fast networking

Specifications

BrandASUS
ModelROG MAXIMUS Z890 HERO
CPU Socket TypeLGA 1851
CPU TypeIntel Core Ultra Processors (Series 2)
ChipsetIntel Z890
Number of Memory Slots4x288pin (DDR5)
Memory StandardDDR5 9200 / DDR5 9066 / DDR5 9000 / DDR5 8933 / DDR5 8800 / DDR5 8666 / DDR5 8600 / DDR5 8400 / DDR5 8266 / DDR5 8200 / DDR5 8000 / DDR5 7950 / DDR5 7900 / DDR5 7800 / DDR5 7600 / DDR5 7400 / DDR5 7200 / DDR5 7000 / DDR5 6800 / DDR5 6600 / DDR5 6400 / DDR5 6200 / DDR5 6000 / DDR5 5800 / DDR5 5600 / DDR5 5400 / DDR5 5200 / DDR5 5000 / DDR5 4800 / DDR5 4400
Maximum Memory Supported256GB
Channel SupportedDual Channel
Memory Performance ProfileIntel XMP 3.0
Memory FeatureSupport up to 9200+MT/s (OC), Non-ECC, Un-buffered, Clocked Unbuffered DIMM (CUDIMM)*
Dual channel memory architecture
Supports Intel Extreme Memory Profile (XMP) memory module
Supports DIMM Flex
NitroPath DRAM Technology
DIMM FIT
ASUS Enhanced Memory Profile III (AEMP III)
* Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.
PCI Express 5.0 x16Intel Core Ultra Processors (Series 2)*
1 x PCIe 5.0 x16 slot (supports x16 or x8/x4/x4 modes)**
** When M.2_3 or M.2_4 is enabled, PCIEX16(G5) will run x8 only.
PCI Express 4.0 x16Intel Z890 Chipset
1 x PCIe 4.0 x16 slot (supports x4 mode)
PCI Express x41 x PCIe 4.0 x1 slot
Serial ATA (SATA)4 x SATA 6Gb/s
M.2Intel 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 mode)**
M.2_4 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)
Intel Z890 Chipset
M.2_5 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
M.2_6 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
SlimSAS slot supports PCIe 4.0 x4 mode or up to 4 SATA devices via a transfer cable. The cable is purchased separa
SATA RAID* 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 Channels7.1 Channels
Max LAN Speed5Gbps + 2.5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports2 x Thunderbolt 4 USB Type-C ports
5 x USB 10Gbps ports (4 x Type-A + 1 x USB Type-C)
4 x USB 5Gbps ports (4 x Type-A)
1 x HDMI port
1 x Wi-Fi module
1 x Intel 2.5Gb Ethernet port
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
Onboard USB1 x USB 20Gbps connector (supports USB Type-C)
1 x USB 10Gps connector (supports USB Type-C)
2 x USB 5Gbps headers support 4 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Other ConnectorsFan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
4 x 4-pin Chassis Fan headers
1 x W_PUMP+ headers
Miscellaneous
3 x Addressable Gen 2 headers
1 x Alteration PCIe mode switch
1 x FlexKey button
1 x Front Panel Audio header (F_AUDIO)
1 x ReTry button
1 x Start button
1 x 10-1 pin System Panel header
1 x Thermal Sensor header
1 x Thunderbolt (USB4) header
BIOS Feature256 Mb Flash ROM, UEFI AMI BIOS
SoftwareROG Exclusive Software
- ROG CPU-Z
- Dolby Atmos
- Polymo Lighting II
- Internet Security (1-year full version)
ASUS Exclusive Software
Armoury Crate
- AIDA64 Extreme (1 year full version)
- Aura Creator
- Aura Sync
- Xpert 4 (with AI Cooling II)
- GameFirst
- Power Saving
- Hwinfo
ASUS AI Advisor
ASUS DriverHub
ASUS GlideX
Thunderbolt™ Share
USB Wattage Watcher
TurboV Core
Adobe Creative Cloud (Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
NPU Boost
AI Overclocking Guide
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode
- ASUS MyHotkey
FlexKey
Windows 11Windows 11 (22H2 & later)
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24-pin Main Power connector
2 x 8-pin +12V CPU Power connectors
1 x 8-pin PCIe Power connector
FeaturesExtreme OC Kit
- FlexKey button
- ReTry button
- Start button
Extreme Engine Digi+
- 10K Black metallic capacitors
- MicroFine alloy choke
ASUS Q-Design
- M.2 Q-Latch
- M.2 Q-Release
- M.2 Q-Slide
- Q-Release Slim (with PCIe SafeSlot)
- Q-Antenna
- Q-Code
- Q-Connector
- Q-Dashboard
- Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green])
- Q-Slot
ASUS Thermal Solution
- M.2 heatsink backplate
- M.2 heatsink
- Metal backplate
- VRM heatsink design
ASUS EZ DIY
- Backplate
- BIOS FlashBack™ button
- Clear CMOS button
- CPU Socket lever protector
- ProCool II
- Pre-mo
Package ContentsCables
1 x ARGB RGB extension cable
4 x SATA 6Gb/s cables
Additional Cooling Kit
1 x DDR5 fan holder
1 x Thermal pad for M.2 22110
Miscellaneous
1 x ASUS WiFi Q-Antenna
1 x Q-connector
1 x M.2 Q-Latch package
3 x M.2 Q-Slide packages
1 x ROG stickers
6 x M.2 rubber packages
1 x ROG thank you card
1 x ROG Bottle Opener
Installation Media
1 x USB drive with utilities and drivers
Documentation
1 x Quick start guide
Shipping weight3.65 kg
Package size370 × 312 × 108 mm

Questions about this item

Will this board fit my LGA 1851 Intel Core Ultra Series 2 processor?

Yes, the LGA 1851 socket is built for Intel Core Ultra Processors (Series 2) and the Z890 chipset provides full feature support for that CPU family.

What DDR5 memory speeds can I run stably on the four 288-pin slots?

The board validates speeds from 4400 up to 9200 MT/s (OC) with Intel XMP 3.0, AEMP III and NitroPath DRAM Technology, supporting up to 256 GB in dual-channel mode.

How many PCIe 5.0 and 4.0 M.2 drives can I install without losing GPU bandwidth?

Three M.2 slots are wired to the CPU: M.2_1 runs PCIe 5.0 x4, M.2_2 runs PCIe 4.0 x4, M.2_3 runs PCIe 4.0 x4; enabling M.2_3 or M.2_4 drops the primary PCIe 5.0 x16 slot to x8.

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