ASUS GX651AX-U96420G0W specification sheet

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Overview:

Asus ROG Zephyrus Duo 16 GX651AX High Performance Gaming Laptop
The Asus ROG Zephyrus Duo 16 GX651AX is a premium dual-screen gaming laptop designed for extreme performance and multitasking. It combines desktop-level power with a unique dual display setup, making it suitable for gaming, content creation, and professional workloads. Powered by Intel Core Ultra 9 and NVIDIA RTX 5090 graphics, it delivers high-end speed for demanding applications.

This model stands out with its dual 16-inch OLED touchscreen displays, high refresh rate visuals, and advanced cooling system. It is built for users who need both performance and expanded screen space in a portable workstation format.

Features:

Dual Screen OLED Laptop Experience
The main highlight of the Zephyrus Duo is its dual display design. It features two 16-inch 3K OLED touchscreens that effectively expand your workspace into a multi-monitor setup.

The secondary display sits above the keyboard area and is designed for multitasking, gaming tools, streaming controls, or creative software timelines. This layout is ideal for productivity-heavy users who want more screen space without external monitors.

Gaming Performance and Graphics Power
At the core of this laptop is the Intel Core Ultra 9 386H processor with 16 cores designed for high performance multitasking and gaming workloads. It is paired with the NVIDIA GeForce RTX 5090 laptop GPU with 24GB dedicated memory.

Key performance highlights include:

• High-end RTX 5090 graphics for AAA gaming
• Advanced AI acceleration and ray tracing support
• Smooth performance for 4K and high refresh rate gaming
• Optimized power delivery for sustained performance

This combination makes the device suitable for demanding gaming titles, 3D rendering, and AI-assisted workflows.

High Speed Memory and Storage Configuration
The system includes 64GB of LPDDR5 high-speed memory, designed for heavy multitasking and professional software usage. Storage is handled by a 2TB PCIe SSD, offering fast boot times and quick file access.

The dual SSD slot design allows for future storage expansion, making it flexible for long-term use.

Advanced OLED Display Quality
Both displays use 3K OLED panels with 120Hz refresh rate, delivering sharp visuals and smooth motion handling. The screens support high brightness levels, deep contrast, and accurate color reproduction.

Display benefits include:

• 3K resolution for detailed visuals
• OLED technology for deep blacks and vivid colors
• High refresh rate for smooth gameplay
• Wide color accuracy suitable for creative work

This makes the laptop suitable for gaming, video editing, and design work.

Design and Build with Dual Mode Flexibility
The chassis is built from CNC machined aluminum in a grey finish, offering a premium and durable feel. Despite its power, the device supports multiple usage modes including laptop mode, tent mode, sharing mode, and dual screen mode.

The dual screen mode is especially useful for productivity, allowing a large extended workspace for multitasking.

Cooling and Thermal Control System
The Zephyrus Duo uses an advanced cooling system designed to handle high-performance components under load. It includes vapor chamber cooling, dual fans, and thermal optimization materials to maintain stable performance during gaming or rendering sessions.

This helps reduce thermal throttling and keeps performance consistent over long usage periods.

Connectivity and Ports
The laptop includes modern connectivity options for professional and gaming setups.

• Thunderbolt 4 ports with display and power support
• USB 3.2 Gen 2 Type-A ports
• HDMI output
• SD card reader
• Wi-Fi 7 support for fast wireless connectivity
• Bluetooth support for peripherals

These options make it suitable for multi-device setups and external display connections.

Keyboard, Audio and Usability Features
The device includes a wireless RGB keyboard designed for flexibility and comfort. It features a large touchpad and responsive key travel for typing and gaming.

Audio is powered by a multi-speaker system designed for louder output and improved bass response compared to previous models.

Additional usability features include Windows Hello facial login, Armoury Crate system control software, and Copilot integration in Windows 11 for productivity assistance.

Battery and Mobility
A 90Wh battery supports extended use away from power sources. Fast charging via USB-C allows more flexibility when travelling or working remotely.

Despite its high-end components, the system is designed to balance performance with mobility for a workstation-class laptop experience.

Specifications:

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Specifications and features
Product Code	ASUS GX651AX-U96420G0W
Model	GX651AX / 90NR0NT2-M004W0
Marketing Name	ROG Zephyrus Duo 16
Operating System	Windows 11 Home
Office	1-month trial for new Microsoft 365 customers. Credit card required.
Color	Stellar Grey
Top case-material	Aluminum
LCD cover-material	Texture plastic
Bottom case-material	Aluminum
Dimension (W x D x H)	35.5 x 24.7 x 1.99 ~ 2.49 cm (13.98" x 9.72" x 0.78" ~ 0.98")
Weight	2.82 Kg (6.22 lbs)
Processor	Intel Core Ultra 9 Processor 386H 2.1 GHz (18MB Cache, up to 4.9 GHz, 16 cores, 16 Threads) , Intel NPU up to 50TOPS
Chipset	N/A
Intergrated GPU	Intel Graphics
Discrete/Optimus	MUX Switch
Graphic	NVIDIA GeForce RTX 5090 Laptop GPU
Graphic Memory	24GB GDDR7
Neural Processor	Intel NPU up to 50TOPS
Panel Size	16-inch
Resolution	3K (2880 x 1800) OLED 16:10 aspect ratio
Refresh Rate	120Hz
Response Time (G2G)	0.2ms
Touch Screen	Touch Screen
Viewing Angle	85/85/85/85
Panel Tech	OLED
Brightness	1100nits
Contrast Ratio	1,000,000:1
DCI-P3 %	100 %
Surface texture of display	Anti-glare(AG) display
Adaptive-Sync technology	G-Sync
Pantone	Pantone Validated
Nebula Display	ROG Nebula HDR Display
Support Dolby Vision HDR	Yes
Stylus support	Yes
Thermal Feature	ROG intelligent cooling
On board memory	64GB LPDDR5X 8533 on board(Actual memory speeds may vary by CPU configuration.)
Total System Memory	LPDDR5X 64GB
Memory Slot	No expansion possible
Memory Max.	64GB
Multi-channel memory technology	Support dual channel memory technology
How to upgrade memory	Not Available
Storage	2TB PCIe 5.0 NVMe M.2 Performance SSD
M.2 slots support either SATA or NVMe	2
M.2 SSD Support List	1TB M.2 NVMe PCIe G5x4 Performance SSD
	2TB M.2 NVMe PCIe G5x4 Performance SSD
	2TB M.2 NVMe PCIe G4x4 Value SSD
	1TB M.2 NVMe PCIe G4x4 Value SSD
Expansion Slot (includes used)	2x M.2 PCIe
LAN	N/A
On board Wireless	Wi-Fi 7(802.11be) (Triple band) 2*2 + Bluetooth 6.0 Wireless Card
	(*Bluetooth version may change with OS version different.)
I/O Ports	2x USB 3.2 Gen 2 Type-A (data speed up to 10Gbps)
	2x Thunderbolt 4 with support for DisplayPort / power delivery (data speed up to 40Gbps)
	1x card reader (SD) (UHS-II, 312MB/s)
Display output	1x HDMI 2.1 FRL support HDMI switch
Camera	1080P FHD IR Camera for Windows Hello
Mic	Built-in array microphone
Keyboard Type	Backlit Chiclet Keyboard 1-Zone RGB
	With Copilot key
Aura Sync	AURA SYNC function is only available when the laptop is connected via Pogo pin
Touchpad	N/A
	N/A
FingerPrint	N/A
Speakers	4-speaker (dual-force woofer) system with Smart Amplifier Technology, 2 Tweeters
Audio	1x 3.5mm Combo Audio Jack
	Built-in array microphone
Audio Tech	Smart Amp Technology
	AI noise-canceling technology
	Dolby Atmos
Security	Secured-core PC (Level 3)
	Trusted Platform Module (Firmware TPM)
	Pluton Security Processor
	BIOS Administrator Password and User Password Protection
Antivirus	N/A
Battery	90WHrs, 4S1P, 4-cell Li-ion
Fast charging	Recharge from 0-50% in 30 minutes
Charger included	Included
Power	Rectangle Conn, 250W AC Adapter, Output: 20V DC, 12.5A, 250W, Input: 100- 240V AC, 50/60Hz universal
Required charging power	Min: 45W
	Max: 100W
Xbox Game Pass
Included in the Box	Backpack for Duo (2026)
Ecolabels & Compliances	ENERGY STAR
Reparability Index (for France)	9.4