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  • Brand: ASUS
  • Product Code:90MB12J0-M0EAY0
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Power and Performance Redefined Introducing the ASUS Maximus XII Extreme, This outstanding motherboard has been carefully crafted and tuned by skilled ROG engineers to bring you unprecedented performance. Designed to be as extreme as it\'s name su..

Power and Performance Redefined Introducing the ASUS Maximus XII Extreme, This outstanding motherboard has been carefully crafted and tuned by skilled ROG engineers to bring you unprecedented performance. Designed to be as extreme as it\'s name suggests the Maximus XII Extreme is perfect for max performance water-cooling enthusiasts. Combining hardware and software, to achieve optimized overclocking, high-speed memory support and comprehensive water and fan cooling controls, Maximus XII Extreme delivers ultimate performance combined with efficient, reliable operation.

Intel Z490 Chipset

LGA 1200 CPU Socket

E-ATX Form Factor

Built to Take the Strain

POWER DELIVERY ENHANCEMENTS Modern CPU architectures up the ante for motherboard power design by transitioning from deep power saving modes to full load almost instantaneously. Our latest VRM architecture rises to the challenge by utilizing teamed power stages to rapidly swing current, while maintaining exemplary thermal performance.

1. 16-Pin ProCool II Power connector Ensures a snug and reliable connection to the EPS 12V power lines.

2. 90A

Power StagerThe VRM features 16 infineon TDA21490 power stages, each rated to handle 90 amps.


Alloy ChokesEach Power stage is accompanied by a high-permeability alloy-core choke rated to handle 45 amps.

4. 10K Black

Metallic Capacitors Input and output filtering is provided by solid-polymer capacitors rated to last thousands of hours at high operating temperatures.

Cooler by Design

COMPREHENSIVE COOLING ZONEEnjoy comprehensive control over fans and water pumps, via either Fan Expert 4 or our UEFI. Whether you\'re cooling with air or water, Auto-Tuning mode intelligently configures all parameters with a single click. There\'s also an Extreme Quiet mode, which reduces all fan speeds to below the default minimum — keeping your system whisper-quiet when performing light tasks.

Multiple temperature sources Each header can be set to monitor and react to three user-configurable thermal sensors for workload-based cooling. And all settings can be easily managed by Fan Xpert 4 or UEFI.

Unprecedented Thermal Dominance

Extreme Cooling for an Extreme Motherboard Maximus XII Extreme delivers exceptional overclocking performance without requiring a fan for cooling. This is possible thanks to 16 teamed power stages running 90A MOSFETs on it VRM layout. To further improve heat dissipation, the I/O cover act as a large heatsink and there is also a heat pipe bridging the VRM heatsinks, increasing surface area and improving heat dissipation.

1. VRM

HeatsinkA VRM heatsink is placed on the MOSFETs and chokes, and the embedded heatpipe connects to the aluminum I/O cover.

2. Aluminium

I/O CoverThe aluminum I/O cover is connected to the primary heatsink via an embedded heatpipe, increasing mass and surface area for dissipation.

3. Extended VRM HeatsinkHelps cool vital motherboard power delivery areas to enhance the overclocking potential of future processors.

4. Aluminum heatsink coverThe heatsink cover is crafted from pure aluminum to efficiently cool the two onboard M.2 drives.

5. High-conductivity

thermal pad The high-quality thermal pad improves overall heat transfer from the system by bridging the heat generated by the power stages to the heatsink

6. Solid steel

backplate A steel, cold-rolled coil construction backplate strengthens the motherboard to prevent bending, and adds additional mass to siphon heat from the VRM.

7. Chipset

heatsinkA chipset heatsink blends seamlessly with the aluminum heatsink cover and prominently features the ROG logo.

Push your Memory to Higher Frequencies

OPTIMEM IIIBoasting proprietary memory trace layout tweaks that improve signal integrity and mitigate noise, ASUS OptiMem III is more compatible with 3600 MHz+ memory kits, allowing them to run at higher frequencies. You can opt to optimise your memory for high frequency settings, or low latency settings and with higher capacity memory kits, OptiMem III enables you to run at maximum frequency, whereas other motherboards will trade off frequency for capacity. Stack Maximus XII Extreme with your favorite modules and maximize throughput of the new 10th Generation Intel® Core™ Comet Lake-S processor for applications that demand massive bandwidth.

Support for up to four M.2 Drives

Maximus compatibilityMaximus XII Extreme supports up to four onboard M.2 drives to maximize storage. Two can be found on the ROG DIMM.2 module, next to the memory slots, and supports drives as long as 110 mm. The other two can be found under the aluminum heatsink cover. PCIe support ensures compatibility with the very latest NVMe SSDs for ultrafast transfer speeds.

Take your Connectivity to the Next Level

1. USB 3.2 Gen 2

front-panel connectors Two front-panel USB 3.2 connectors area ready to accommodate a wide variety of devices

2. Bundled Thunderbolt™ 3 Expansion Card At a breathtaking 40Gbps you\'ll experience faster transfers, with four times (4X) the data speeds of any other cable and twice (2X) the video bandwidth.

3. USB 3.2 Gen 2x2 Reversible USB 3.2 Gen 2x2 Type-C™ ports provide ultimate flexibility and blazing data-transfer speeds.

The Future of Home-Networking

1. Wi-Fi 6 (AX201) Onboard Wi-Fi 6 (802.11ax) supports ultrafast network speeds, improved capacity and better performance in dense Wi-Fi environments, providing exceptional online gaming experiences.

2. 10 Gbps onboard Ethernet 10 Gbps onboard Ethernet provides a new level of home networking. With up to 10X the bandwidth of standard gigabit Ethernet, you\'ll enjoy streaming uncompressed 4K UHD videos, and backups and file transfers that are faster than ever before.

3. Intel 2.5G Ethernet Onboard Intel 2.5G Ethernet gives your wired connection a boost, with up to a 2.5X improvement over standard Ethernet connections for faster file transfers, smoother lag-free gaming and high-res video streaming.

5-Way Optimization

Overclocking Intelligence Take care of complex tuning with just one click. ASUS 5-Way Optimization is a system-wide tuning utility that overclocks the processor and tunes fan speeds to ensure the best balance between cooling and acoustics. The automated CPU tuning feature of 5-Way Optimization leverages the same on-board intelligence as AI Overclocking, but goes further by running a Prime95 based stress test to deliver a result that\'s well-tuned from the beginning.

Flexible Cooling Controls With the ROG MAXIMUS Series you have comprehensive control over fans via Fan Xpert 4 or the media-acclaimed UEFI. Whether you are cooling with air or water, Auto-Tuning mode intelligently configures all parameters with a single click. Extreme Quiet mode reduces all fan speeds to below the default minimum assuring your system stays whisper-quiet when performing light tasks.

World Renowned UEFI BIOS

Not just for veteransThe renowned ASUS UEFI BIOS provides everything you need to configure, tweak and tune your system. It offers intelligently simplified options for PC DIY beginners, as well as comprehensive features for seasoned veterans.

Advanced Mode An intuitive Advanced mode offered via the UEFI lets you take complete control. A built-in search feature makes it easy to find options, and various Advanced functions let you intelligently make nuanced adjustments so you can dial in performance just the way you want.

Livedash OLED Display

Display your own custom logoROG Maximus XII Extreme motherboards is equipped with LiveDash, a built-in 2” OLED panel that displays useful information and customisable graphics. During the power-on, self-test (POST) phase, OLED shows key progress stats in simple language, using traditional POST codes. Then, during normal operation, the panel shows a choice of CPU frequency, device temperatures, fan speeds or information from the Water-Cooling Zone. You\'re also able to customise the default OLED GIF, so it\'ll display your own image or animation.

Boost your Game with Ramcache III

LAUNCH YOUR APPS AT NECK BREAKING SPEEDS RAMCache turns milliseconds into microseconds to boost game-load times. Fully compatible with the latest NVM Express storage options, its uniquely intelligent technology effectively caches an entire storage device so that favorite games and apps launch at breakneck speeds. Smart mode automatically caches all your storage devices to maximize your system\'s resources using an intuitive interface which displays real time drive information. RamCache III also allows you to efficiently check the health status of assigned memory.

Outshine the Competition with ASUS Aura Sync

Your Motherboard, Your Way Gear up with ROG components, from graphics and monitors to mice and keyboards. And up your game with complementary aesthetics, control and compatibility. The ROG ecosystem is more extensive than any competing brand, so enjoy greater choice as your system expands.

Core Specifications Edition ROG MAXIMUS XII EXTREME

Form Factor E-ATX

CPU Socket 1200

Chipset Intel Z490

RAM Memory Support

Memory Type DDR4

Memory Channel Dual (2)

Memory Type (ECC) Non-ECC

Memory Type (R/U) UDIMM (Unbuffered)

Memory Speed (Mhz) DDR4 - 2133DDR4 - 2400DDR4 - 2666DDR4 - 2800(OC)DDR4 - 2933(OC)DDR4 - 3000(OC)DDR4 - 3200(OC)DDR4 - 3333(OC)DDR4 - 3400(OC)DDR4 - 3466(OC)DDR4 - 3600(OC)DDR4 - 3733(OC)DDR4 - 3866(OC)DDR4 - 4000(OC)DDR4 - 4133(OC)DDR4 - 4266(OC)DDR4 - 4400(OC)DDR4 - 4500(OC)DDR4 - 4600(OC)DDR4 - 4700+(OC)

Max. Memory Capacity 128GB


Audio ROG SupremeFX 8-Ch. HD Audio S1220

Graphics Support

Primary GPU Interface PCIe 3.0 (x16)

NVIDIA SLI Support 2-Way SLi

AMD CrossFire Support 3-Way CrossFire

Integrated Graphics Discrete GPU Required for Graphics Output

On-Board Graphics Connectors None

Internal Connectivity

Expansion Slots 2 x DIMM.2 - 2x M.2, 22-42/60/80/110, PCIe1 x M.2, 22-42/60/80/110, PCIe Gen3/SATA1 x M.2, 22-42/60/80/110, PCIe Gen3x42 x PCIe 3.0 x161 x PCIe 3.0 x4

SATA Support SATA3 / M.2

RAID Support via Intel® SATA RAID 0/1/10/5

Storage Mode Support RAID 0RAID 1RAID 10RAID 5

Internal I/O 1 x 24-pin (Power)2 x 4-pin CHA_FAN connector1 x 4-pin CPU Fan Connector1 x 4-pin CPU OPT Fan Connector1 x 4-pin EZ PLUG Power8 x 4-pin Radiator Fan Headers2 x 8-pin (Power)2 x Aura Addressable Gen2 Header2 x Aura RGB Strip Headers1 x BIOS Switch button1 x FlexKey Button1 x Front Panel Audio Header1 x LN2 Mode jumper(s)8 x ProbeIt Measurement Points1 x ReTry Button2 x RSVD Switch1 x Safe Boot Button8 x SATA III - 6Gb/s1 x Slow Mode Switch1 x speaker header1 x START (Power On) button1 x Temperature Sensor Header1 x Thunderbolt header2 x USB 2.0 Header2 x USB 3.2 Gen1 Header2 x USB 3.2 Gen1 Type-C Front Panel Header1 x W_FLOW header1 x W_IN header1 x W_OUT header2 x Water Pump+ Connector (4-Pin)

External Connectivity

Network Interface Type 802.11ax WiFi LANWired 10G LANWired 2.5 Gigabit LAN (10/100/1000/2500)

Network Chip/Modules 1 x Intel (2.5GbE LAN)1 x Intel 802.11ax WiFi + BT5 Module1 x Marvell AQtion AQC107 10GbE

Rear I/O Connectors 1 x 10/100/1000/2500 (LAN)1 x 10GbE RJ451 x 5.1 Audio I/O1 x BIOS Flashback Button1 x Clear CMOS Button2 x USB 2.06 x USB 3.2 Gen1 Type-A2 x USB 3.2 Gen2 Type-A1 x USB 3.2 Gen2 Type-C1 x USB 3.2 Gen2x2 Type-C2 x WiFi Antenna connectors

Additional Specifications

Water Cooled No

Cooling Passive Heatsinks

QPI Speed N/A

Board Dimensions 305 x 277 mm

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