ASUS has launched the 2026 Zenbook Duo UX8407AA-PBX9T laptop (Part Number: 90NB16V1-M00ZB0, UPC 199291612266), powered by the Intel® Core™ Ultra X9 Processor 378H, in the US online. The price starts at $2,999.99 ( lowest price recorded on August 28, 2026 on Amazon US, check product page for updated pricing ).
Let’s check out the specs and features of this dual-screen machine.
- Processor: Intel® Core™ Ultra X9 Processor 378H (16 cores, 16 threads)
- Graphics: Intel® Arc™ Graphics
- RAM: 32GB LPDDR5X on board
- Storage: 1TB M.2 NVMe™ PCIe® 4.0 SSD
- Display: Dual 14″ 3K (2880 x 1800) OLED touchscreens, 144Hz
The Intel® Core™ Ultra X9 Processor 378H this model is powered with runs at a base clock of 2.1 GHz with a boost of up to 5.0 GHz, and carries 18MB of cache across its 16 cores and 16 threads. For graphics, it has integrated Intel® Arc™ Graphics. There is no dedicated / discrete Nvidia Graphics on this model. The chip’s NPU is rated at up to 50 TOPS, which is what puts this model in Copilot+ PC territory.
It ships with 32GB LPDDR5X RAM memory, and the maximum total system memory the platform supports is also 32GB. The memory is soldered on board, and there are no empty DIMM slots available – so the possibility of adding more RAM is out of the question. For storage, it comes with a 1TB M.2 NVMe™ PCIe® 4.0 SSD in the single M.2 2280 PCIe 4.0 x4 slot, so a storage upgrade means replacing the drive rather than adding a second one.
As the name suggests, this laptop has Dual Displays. Both are 14-inch 3K (2880 x 1800) OLED touch panels in a 16:10 aspect ratio, running at 144Hz with a 0.2ms response time. Regular brightness is 500 nits and HDR peak brightness goes up to 1000 nits, with a 1,000,000:1 contrast ratio and VESA CERTIFIED Display HDR True Black 1000.
This panel covers 100% of the DCI-P3 gamut, display 1.07 billion colours, and are PANTONE Validated offering excellent color reproduction and viewing experience. There is an anti-reflection (AR) coating for better viewing. ASUS rates the panels at 70% less harmful blue light, and the screen-to-body ratio is 93%. Both screens are touch enabled and support stylus input.
When it comes to I/O ports, the following are available on the Zenbook Duo UX8407AA-PBX9T:
- 2x Thunderbolt™ 4 with support for display and power delivery (data speed up to 40Gbps)
- 1x USB 3.2 Gen 2 Type-A
- 1x HDMI 2.1 FRL
- 1x 3.5mm Combo Audio Jack
For webcam and video calls, it has an FHD camera with IR function, which supports Windows Hello face sign-in. There is a built-in array microphone and built-in speakers with Smart Amp Technology. According to ASUS, the audio setup runs six speakers with Dolby Atmos support.
Wireless connectivity is handled by a Wi-Fi 7 (802.11be) triple band 2*2 card with Bluetooth® 5.4.
ASUS has equipped this model with a 99WHrs, 4S1P, 4-cell Li-ion battery and includes a 100W USB Type-C AC adapter (output 20V DC, 5A, input 100~240V AC 50/60Hz universal). ASUS claims a fast charge to 60% in 49 minutes ( this is ASUS’s claims under ideal testing conditions – the real world usage can vary vastly ).
This laptop weighs 1.65 kg (3.64 lbs) and comes in Moher Gray color. It ships with Windows 11 Home operating system. ASUS describes the chassis, hinge and kickstand as full Ceraluminum, and the model is tested to the US MIL-STD 810H military-grade standard.
On security, it carries a firmware TPM (Trusted Platform Module) and the Microsoft Pluton security processor, alongside the IR webcam noted above.
The bundle includes a protective sleeve and the ASUS Pen 3.0, which supports wireless charging and MPP 2.6.
ASUS ships a set of its own applications on this model, including GlideX, ScreenXpert, MyASUS and ASUS Recovery. MyASUS itself carries AI Noise Canceling, Live update, TaskFirst, WiFi SmartConnect, Function key lock, Tru2Life, Splendid, Fan Profile, Battery health charging and System diagnosis.
Full Specifications
Model and Identifiers
- ASUS Zenbook Duo (2026)
- Order code UX8407AA-PBX9T
- Part number 90NB16V1-M00ZB0
- UPC 199291612266
- Moher Gray
Silicon
- Intel Core Ultra X9 Processor 378H
- 2.1 GHz base, up to 5.0 GHz boost
- 16 cores, 16 threads, 18MB cache
- Intel Arc Graphics
- Intel NPU rated at up to 50 TOPS
- Copilot+ PC
Memory and Storage
- 32GB LPDDR5X soldered on board, 32GB platform ceiling
- 1TB M.2 NVMe PCIe 4.0 SSD
- One M.2 2280 PCIe 4.0 x4 slot, occupied
Screens
- Two 14-inch 3K OLED touch panels, 2880 x 1800 each
- 16:10 aspect ratio, 144Hz, 0.2ms response
- 500 nits typical, up to 1000 nits HDR peak
- 1,000,000:1 contrast, VESA Display HDR True Black 1000
- 100% DCI-P3, 1.07 billion colours, PANTONE Validated
- Anti-reflection coating, 70% less harmful blue light
- 93% screen-to-body ratio, stylus support
Input, Camera and Audio
- Magnetic detachable keyboard with integrated kickstand
- Backlit chiclet soft keyboard, 1.7mm key travel, precision touchpad
- FHD IR camera with Windows Hello
- Built-in array microphone
- Six speakers with Dolby Atmos, Smart Amp Technology
Radios and Wired I/O
- Wi-Fi 7 (802.11be) triple band 2*2
- Bluetooth 5.4
- 2x Thunderbolt 4 with display and power delivery, up to 40Gbps
- 1x USB 3.2 Gen 2 Type-A
- 1x HDMI 2.1 FRL
- 1x 3.5mm combo audio jack
Security
- Firmware TPM
- Microsoft Pluton security processor
- IR webcam with Windows Hello
Power, Chassis and Weight
- 99WHrs 4S1P 4-cell Li-ion battery
- 100W USB Type-C charger in the box, 20V DC 5A output
- Ceraluminum chassis, hinge and kickstand
- US MIL-STD 810H tested
- 1.65 kg (3.64 lbs)
- Windows 11
Software
- GlideX, ScreenXpert, MyASUS, ASUS Recovery
- MyASUS features: AI Noise Canceling, Live update, TaskFirst, WiFi SmartConnect, Function key lock, Tru2Life, Splendid, Fan Profile, Battery health charging, System diagnosis
What’s in the box:
- 1x ASUS Zenbook Duo UX8407AA-PBX9T laptop
- 1x Detachable magnetic keyboard
- 1x ASUS Pen 3.0
- 1x Protective sleeve
- 1x 100W USB Type-C AC adapter
Product Package: ASUS Zenbook Duo Laptop (2026), Dual 14″ OLED 3K 144Hz Touch Display, Intel Core Ultra X9 378H, Intel Arc Graphics, 32GB RAM, 1TB SSD, Sleeve and Stylus Included, WiFi 7, Windows 11, Moher Gray ( 199291612266 ).
Note: Specs and features listed here were taken from the listing and the manufacturer’s spec sheet at the time of writing, and regional configurations sometimes differ from what a listing shows. Check the official ASUS product page or the Amazon US listing to confirm the full specifications before buying.
Prices mentioned above are the lowest prices recorded on August 28, 2026, and may change in the future.
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