ASUS AMD Threadripper ROG Zenith II Extreme Alpha TRX40 PCIe 4.0 E-ATX Motherboard

  • Ex Vat:£715.27
  • Brand: ASUS
  • Product Code:90MB14K0-M0EAY0
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ROG Zenith II Extreme AlphaROG Zenith II Extreme Alpha is locked, loaded and ready to unleash the savage computing power of the ground-breaking 64-core AMD Ryzen Threadripper CPUs. Freshly equipped with 16 high-current 90A power stages our new goliat..

ROG Zenith II Extreme Alpha

ROG Zenith II Extreme Alpha is locked, loaded and ready to unleash the savage computing power of the ground-breaking 64-core AMD Ryzen Threadripper CPUs. Freshly equipped with 16 high-current 90A power stages our new goliath delivers supreme efficiency and enhanced headroom for overclocking, empowering you to push performance as never before. Maximized lane bandwidth lets you connect up to 33 devices simultaneously, while every single PCIe x16 and M.2 slot is wired with PCIe® 4.0 – so you\'re free to equip next-gen graphics cards or NVMe drives without fear of bottlenecks. Massive power, massive bandwidth.

ESD Guards

Greater electrostatic protection than the industry standard. ESD Guards cover the USB, audio and LAN ports.

TrueVolt USB

USB power supplies rock-steady 5V to all USB ports, minimizing power fluctuations for minimal data loss.

LiveDash Colour OLED 1.77”

Indicates power status and potential problems with the CPU, memory, graphics card or boot device for quick diagnosis.


At its default, the FlexKey functions as a system reset button, but it can also be easily set to quickly turn Aura lighting on or off, activate Safe Boot or enter the BIOS.


One sided clips for super-simple, super-secure handling of memory modules.


Provides stronger PCIe device retention and greater shearing resistance.


High-end desktop processors have greater power requirements due to the abundance of cores and memory channels. The latest Threadripper evolutions are particularly demanding, so intelligent VRM design and quality components are vital – especially for overclocked CPUs that live closer to the edge of stability. Accompanied with our critically-acclaimed UEFI and AI Suite tuning utility, ROG Zenith II Extreme Alpha offers an accessible range of manual tweaking tools, plus a highly-configurable auto-tuner that maximizes system control and performance with no expert knowledge required.

Teamed Power Architecture

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.

OptiMem III DDR4 4733MHz+ (O.C.)

Infused with proprietary memory trace layout tweaks that improve signal integrity and mitigate noise, OptiMem III allows memory kits to run at lower latencies and reduced voltages while operating at higher frequencies. Stack the Zenith II Extreme Alpha with your favourite modules and maximize latest Threadripper CPU throughput for applications that demand massive bandwidth, or balance Infinity Fabric and memory performance for a diverse range of workloads.


Our critically acclaimed UEFI and AI Suite tuning utility offer an accessible range of manual tweaking options for experts who want maximum control over their hardware. They\'re accompanied by 5-Way Optimization, a highly configurable auto-tuner that finds the optimal overclock for your build by methodically increasing the frequency and testing stability like a seasoned veteran would.


The renowned ROG UEFI (BIOS) provides everything you need to configure, tweak, and tune your rig. It offers intelligently simplified options for newcomers to PC DIY, as well as comprehensive features for seasoned veterans.

EZ Mode: Designed to simplify setup, EZ mode presents all the vital settings and stats on a single page. With guided wizards, drag-and-drop functionality, and one-click application of important settings, your rig will be up and running in no time.

Advanced Mode: When you’re ready for a deeper dive, delve into the UEFI’s Advanced mode and take complete control. Advanced mode enables full control over every aspect of the motherboard, and a built-in search function helps you quickly find the setting you need.


Having the bandwidth to fuel multiple PCIe SSDs and graphics cards is part of the allure of high-end desktop platforms. ROG Zenith II Extreme Alpha fully exploits Threadripper\'s 64-lane capability, empowering you to connect up to 20 PCIe devices simultaneously. Every single PCIe x16 and M.2 is wired with PCIe 4.0, and the board also accelerates both wired and wireless networking – with both Aquantia 10 Gbps Ethernet and the latest Wi-Fi 6 (802.11ax) onboard.


ROG Zenith II Extreme Alpha supports up to five onboard M.2 drives for maxed-out storage. Two ride the ROG DIMM.2 module, next to the memory slots, and support drives up to 110m. There are another two slots under the aluminium heatsink cover, with a fifth one at the rear of the board. Every one of these slots is wired to support full PCIe 4.0 bandwidth, so they\'re compatible with the very latest NVMe SSDs – laying the foundation for the ultrafast transfer speeds needed to support machine-learning algorithms and drive higher-resolution game textures. It even supports up to 15 M.2 drives, via the optional ASUS HYPER M.2 X16 Gen 4 Card.


AMD StoreMI is a software utility that accelerates any drive for better system responsiveness with reduced start-up and software load times. It combines SSD performance with the affordability and capacity of an HDD by automatically moving frequently accessed data to dedicated SSD storage.


The TRX40 platform is aimed at the most discerning content creators, so Zenith II Extreme Alpha implements the latest USB standards. Ready-to-use ports are located on the rear I/O panel, and there are front-panel connectors on the motherboard to let you put USB right where you need it.

USB 3.2 Gen 2x2: The ROG Zenith II Extreme Alpha is compatible with the latest USB 3.2 Gen 2x2. This newest USB standard doubles the transfer bandwidth by opening another USB 3.2 Gen 2 lane to achieve its maximum throughput of up to 20 Gbps.

USB 3.2 Gen 2 Front-Panel Connectors: Two front-panel USB 3.2 connectors offer the ability to put USB ports at the front of the latest PC chassis, putting fast, convenient connectivity right at your fingertips.


The beefed-up bandwidth doesn\'t stop with the TRX40 platform. We also equipped Zenith II Extreme Alpha with multiple networking technologies, so you can push throughput to the limits.

Wi-Fi 6 (AX200): 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.

10 Gbps Onboard Ethernet: Designed to meet the demanding requirements of power users and content creators, 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.

Intel Ethernet: ROG Zenith II Extreme Alpha features the latest Intel® Ethernet (I211-AT) for faster, smoother gaming. This Intel controller has a natural synergy with Intel processors and chipsets, reducing CPU overhead and offering exceptionally high TCP and UDP throughput – so there\'s more power for games and other tasks.


Great power requires great cooling, so ROG Zenith II Extreme Alpha employs large VRM heatsinks that strike the right balance between surface area and mass. The chipset heatsink integrates an active-cooling solution, helping to keep the underlying silicon stay cool under pressure, and also employs the same airflow to chill the SoC VRM. The extra-large heatsinks also cover multiple M.2 slots, meaning Zenith II Extreme Alpha is fully armed to provide the best foundation for extreme PC systems – enabling higher performance at lower temperatures.

Cooling Heatsinks

VRM Heatsink: A VRM heatsink is placed on the MOSFETs and chokes, and the embedded heatpipe connects to the aluminium I/O cover.

DIMM.2 Heatsinks: The ROG DIMM.2 module now passively cools M.2 drives with metal heatsinks that also keep your build looking clean.

Aluminium I/O Cover: An aluminium I/O cover is connected to the primary heatsink via an embedded heatpipe, increasing mass and surface area.

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.

Aluminium Heatsink Cover: The heatsink cover is crafted from pure aluminium to efficiently cool the two onboard M.2 drives.

SoC VRM Heatsink: Designed to cool the vital motherboard chipset area.

Chipset Heatsink: A chipset heatsink blends seamlessly with the aluminium heatsink cover and prominently features the ROG logo.

Active Cooling VRM Heatsink

Dual custom Delta Superflo fans located within the heatsink kick on after 60° C and allow the ROG Zenith II Extreme Alpha to handle sustained power draw of over 500 watts.

Active-Cooling Chipset Heatsink

Under the chipset\'s aluminium heatsink is a fan that turns on above 55°C. The SoC VRM is also positioned in the pathway of this fan\'s airflow, keeping it cooler during memory overclocking.

ROG Water-Cooling Zone

Dual water-temperature headers and a flow-rate header feed information straight into the AI Suite utility, allowing you to track coolant temperatures and the flow rate of the entire loop.

Fan Extension Card II

ROG Zenith II Extreme Alpha includes our popular Fan Extension Card II, which adds six headers that are controllable via FanXpert 4. The card features three temperature-sensor headers to complement the one available onboard, and also comes with three thermistors that can be affixed to different components. In addition to supplying extra headers for cooling, it provides three RGB headers to provide illuminated effects for your RGB fan.


Sound is an integral part of gaming immersion. ROG Zenith II Extreme Alpha\'s onboard audio joins the latest SupremeFX S1220 codec with a high-end ESS Sabre DAC. Power users in particular pipe content through multiple devices, so our Sonic Studio III software has an intuitive management interface that lets you route sound from applications to specific outputs. The board even supports DTS® Sound Unbound technology, to create three-dimensional audio soundscapes that draw you further into virtual worlds.


ROG is renowned for superior onboard audio, and ROG Zenith II Extreme Alpha is no exception. The front-panel headphone output features a SABRE9018Q2C integrated DAC/amp capable of reaching -108dB THD+N to provide playback that conveys all the subtlety and nuances of even the highest-quality audio track. The improved resolution derived from the ESS Hyperstream™ DAC architecture expands the soundstage to give a better sense of positioning. Beyond resolution, the 120dB DNR provides an extremely low noise-floor, further accentuating dynamics and punch. And, when you want to shift priority to musicality, our Sonic Studio software provides an array of EQ options, allowing the sound signature to be tweaked to suit your cans.

Sonic Studio III

Sonic Studio supports HRTF-based (head-related transfer function*) virtual surround for headsets, casting an immersive aural landscape that draws you deeper into the action. The intuitive Sonic Studio interface also offers a range of EQ options and one-click presets, allowing you to tailor acoustics to suit personal preferences or the characteristics of your headset.

DTS: Sound Unbound

ROG Zenith II Extreme Alpha includes a pre-loaded DTS Sound Unbound app that envelops you in audio as never before, conjuring whole new levels of immersion for extraordinary gaming and entertainment experiences. By exploiting Windows Sonic spatial technology, DTS Sound Unbound delivers audio in a virtual 3D space — putting you right in the middle of the soundscape, where you can sense the location and direction of every gunshot, footstep or other sound in your virtual environment.


In addition to extraordinary performance, ROG Zenith II Extreme Alpha provides extensive styling and customization options to let you build a system that truly stands apart.

Grow Your Gaming World

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.

Addressable Gen 2 RGB Header

The Addressable Gen 2 headers are now capable of detecting the number of LEDs on second-gen addressable RGB devices, allowing the software to automatically tailor lighting effects to specific devices. The new headers also offer backward-compatibility with existing Aura RGB gear.

Gamefirst V Network Control

GameFirst V is an ROG-exclusive tool that lets you use a ROG router to build a ROG-networking ecosystem. Select the best Wi-Fi channel for maximum stability and minimum interference, optimize network traffic and your connection for lag-free online gaming, team your gateways and keep tabs on bandwidth-hogging apps — all from an intuitive interface that enables easy, on-the-fly adjustments.


RAMCache lll turns milliseconds into microseconds to boost game-load times. Fully compatible with the latest NVM Express® storage options, its uniquely intelligent technology effectively caches a storage device so that favourite games and apps launch at breakneck speeds.


The ROG Zenith II Extreme Alpha is equipped with LiveDash, a built-in colour OLED panel that displays useful information and customizable 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 customize the default OLED GIF, so it\'ll display your own image or animation.

Armoury Crate

Armoury Crate is a software utility designed to provide centralized control of supported ROG gaming products. From a single intuitive interface, Armoury Crate lets you easily customize RGB lighting and effects for every compatible device in your arsenal and synchronize them with Aura Sync for uni?ed system lighting effects. The software also provides control of settings for a growing number of ROG products, making it easier to tune the look and feel of your system. Armoury Crate even offers dedicated product registration and ROG news feeds to help you stay in touch with the ROG gaming community.

AMD TRX40 Chipset

The AMD TRX40 chipset delivers outstanding overclocking capabilities for the latest AMD Socket sTRX4 3rd Gen Ryzen™ Threadripper™ series processors. It provides PCIe 4.0 support, 10 Gbps USB 3.2 Gen 2 ports, and eight SATA 6 Gbps ports for faster data retrieval.

Ready for AMD Socket sTRX4 3rd Gen Ryzen Threadripper

ROG Zenith II Extreme Alpha motherboard supports the latest 3rd Gen AMD Ryzen™ Threadripper™ series processors that boast up to 32 cores. It features quad-channel DDR4 memory, 64 lanes of PCI Express® 4.0, 16 GT/s transfer speed for Gen 4 M.2 SSDs, and built-in native USB 3.2 Gen 2 (10 Gbps) for superior performance.


Ready for AMD 3rd Gen Ryzen™ Threadripper™ Processors: Maximize connectivity and speed with up to five M.2 drives, USB3.2 Gen2x2 and AMD StoreMI.

Robust Power Delivery: Optimized power solution with 16 Infineon TDA21490 power stages, ProCool II power connectors, microfine alloy chokes and 10K capacitors.

Comprehensive Thermal Design: Active-cooling VRM heatsink, PCIe-zone M.2 aluminium heatsink, backplate, Fan Extension Card II and water-cooling zone.

High-Performance Networking: Onboard Aquantia® 10 Gbps Ethernet, Wi-Fi 6 (802.11ax) with MU-MIMO support, and GameFirst V technology.

Unmatched Personalization: Colour OLED display and ASUS-exclusive Aura Sync RGB lighting, including two additional RGB headers and two addressable headers.

Industry-Leading ROG Audio: SupremeFX S1220 and ESS® SABRE9018Q2C for enthusiast-grade audio performance, featuring Japanese capacitors.

DIY-Friendly Design: Pre-mounted I/O shield, ASUS SafeSlot, BIOS FlashBack™ and FlexKey.

Product Group:Motherboards






Package Type:Retail

Warranty:3 Years

BIOS:2 x 128 Mb Flash ROM


PnP, WfM2.0, SM BIOS 3.0, ACPI 7.1

Chipset:AMD TRX40

CPU Interface:Socket TRX4

CPU Support:

RAM Technology:DDR4 (Quad Channel)

RAM Slots:8 x 288-pin

RAM Speeds:DDR4 2133

DDR4 2400

DDR4 2666

DDR4 2800

DDR4 3400 (O.C.)

DDR4 3733 (O.C.)

DDR4 3800 (O.C.)

DDR4 4133 (O.C.)

DDR4 4266 (O.C.)

DDR4 4333 (O.C.)

DDR4 4400 (O.C.)

DDR4 4600 (O.C.)

DDR4 4733 (O.C.)

Max. Memory Support:256GB

PCI Express 4.0 x16:4

S-ATA III Port(s):8

M.2 Socket(s):4

LAN Speed:10/100/1000

On-Board LAN:Intel I211-AT, 1 x Gigabit LAN Controller

Aquantia AQC-107 10G

Anti-surge LANGuard

ROG GameFirst V Technology

Wireless NIC:Intel Wi-Fi 6 AX200

Wireless Technology:Supports dual band frequency 2.4/5 GHz

Supports 2x2 MU-MIMO

Supports channel bandwidth: HT20/HT40/HT80/HT160. Up to 1.73Gbps transfer speed


On-Board Audio:ROG SupremeFX 8-Channel High Definition Audio CODEC S1220

Back USB 3.2 Port(s) Type-A Gen 1:4

Back USB 3.2 Port(s) Type-A Gen 2:3

Back USB 3.2 Port(s) Type-C Gen 2:1

Back USB 3.2 Port(s) Type-C Gen 2x2:1

Back LAN Port(s):1

Back Audio Jack(s):5

Back S/PDIF Output Port(s):1

Back Other Port(s):1 x Aquantia AQC-107 10G LAN port

Back Button(s):1 x Clear CMOS

1 x USB BIOS Flashback

24-pin ATX Power:1

8-pin ATX Power:2

4-pin ATX Power:1

USB 2.0 Header(s):2

USB 3.2 Header(s) Gen 1:2

Front Panel Audio Connector:1

Internal Other Port(s):1 x Start

1 x FlexKey

1 x TPM header

7 x ProbeIt Measurement Points

1 x Node Connector

2 x USB 3.2 Gen 2 front panel connector

1 x RSVD Switch

1 x FS Mode switch

1 x M.2_3 cold storage Switch

Internal Button(s):1 x BIOS Switch

1 x Safe Boot

1 x ReTry

Form Factor:Extended ATX

Product Width:277mm

Product Length:310mm

Package Width:31cm

Package Length:37cm

Package Height:11cm

Gross Weight:4.40Kg

Special Features:Ready for AMD 3rd Gen Ryzen Threadripper Processors: Maximize connectivity and speed with up to five M.2 drives, USB3.2 Gen2x2 and AMD StoreMI.

Robust power delivery: Optimized power solution with 16 Infineon TDA21490 power stages, ProCool II power connectors, microfine alloy chokes and 10K capacitors.

Comprehensive thermal design: Active-cooling VRM heatsink, PCIe-zone M.2 aluminium heatsink, backplate, Fan Extension Card II and water-cooling zone.

High-performance networking: Onboard Aquantia 10 Gbps Ethernet, Wi-Fi 6 (802.11ax) with MU-MIMO support, and GameFirst V technology.

Unmatched personalization: Colour OLED display and ASUS-exclusive Aura Sync RGB lighting, including two additional RGB headers and two addressable headers.

Industry-leading ROG audio: SupremeFX S1220 and ESS SABRE9018Q2C for enthusiast-grade audio performance, featuring Japanese capacitors.

DIY-friendly design: Pre-mounted I/O shield, ASUS SafeSlot, BIOS FlashBack and FlexKey.

Package Contents:Motherboard


1 x ROG logo plate sticker

6 x SATA 6Gb/s cables

1 x Fan Extension Card II (6 x 4-pin Chassis Fan connectors, 3 x RGB headers, 3 x 2-pin Thermal sensor header)

1 x Fan Extension Card II power cable

1 x Fan Extension Card II NODE connector cable

1 x Fan Extension Card II screw package

1 x ROG big sticker

1 x Thermistor cable

1 x ROG coaster

2 x ROG weave SATA 6G cable

1 x ROG Thank you card

1 x ROG DIMM.2 with heatsink

1 x M.2 Pad for ROG DIMM.2

1 x ROG Multi-Bit screwdriver

1 x Wi-Fi moving antenna

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