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Gray dual-screen laptop with thin bezels and slim profile

ASUS

ASUS Zenbook Duo UX8406CA 14" 3K OLED 120Hz Touch Ultra 9-285H 32GB 1TB gaming laptop

SKU CH-SSQC-K5CZV

Dual-screen 14" 3K OLED 120Hz touch laptop with 16-core Ultra 9-285H, 32GB LPDDR5X and 1TB PCIe 4.0 NVMe SSD

  • ColorGray
  • Operating SystemWindows 11 Pro
  • CPUIntel® Core Ultra 9-285H
  • Screen14" 3K WQXGA+
  • Memory32GB
  • Storage1 TB M.2 PCIe 4.0 x4 NVMe SSD
  • Dual 14" 3K OLED touchscreens at 120 Hz for expansive multitasking
  • 16-core Ultra 9-285H up to 5.4 GHz turbo for heavy workloads
  • 32 GB LPDDR5X memory keeps many apps responsive
  • 1 TB PCIe 4.0 NVMe SSD loads games and files fast
  • Gelid GC Extreme paste lowers CPU and GPU temperatures under load

Dual-Screen 14" 3K OLED 120Hz Touch Ultra 9 Laptop

This ASUS Zenbook Duo UX8406CA combines two 14-inch 3K OLED touch displays with a 120Hz refresh rate. It runs on an Intel Core Ultra 9 285H processor with 16 cores and a 5.4 GHz maximum turbo frequency. The system includes 32 GB of LPDDR5X memory and a 1 TB PCIe 4.0 x4 NVMe SSD. Windows 11 Pro comes pre-installed for immediate productivity or gaming use.

Gelid GC Extreme Thermal Upgrade on Dual-Display

HIDevolution applies Gelid GC Extreme thermal interface material to the CPU and GPU to lower operating temperatures under load. The gray chassis measures 12.34 inches wide by 8.58 inches deep with a height ranging from 0.57 to 0.78 inches and weighs 3.64 pounds. Each 14.0-inch panel delivers a 2880 x 1800 resolution for sharp visuals across both screens. The slim profile and dual-display hinge design support flexible workflows in tight spaces.

Arrow Lake 16-Core Upgrade for Multi-Tasking

The Intel Core Ultra 9 285H Arrow Lake processor with 16 threads and 24 MB Smart Cache replaces earlier lower-core mobile CPUs for heavy multitasking. Integrated Intel Arc graphics handle creative workloads and light gaming without a discrete GPU. The 1 TB NVMe SSD and 32 GB LPDDR5X memory upgrade slower storage and limited RAM configurations. This jump is worth it when dual-screen workflows demand sustained performance and fast asset loading.

Highlights

  • Dual 14" 3K OLED touchscreens at 120 Hz for expansive multitasking
  • 16-core Ultra 9-285H up to 5.4 GHz turbo for heavy workloads
  • 32 GB LPDDR5X memory keeps many apps responsive
  • 1 TB PCIe 4.0 NVMe SSD loads games and files fast
  • Gelid GC Extreme paste lowers CPU and GPU temperatures under load

Specifications

BrandASUS
SeriesZenBook Duo
ModelZenbook Duo UX8406CA-PS99T
Part NumberUX8406CA-PS99T-HID1P
ColorGray
Operating SystemWindows 11 Pro
CPUIntel® Core Ultra 9-285H
Screen14" 3K WQXGA+
Memory32GB
Storage1 TB M.2 PCIe 4.0 x4 NVMe SSD
Graphics CardIntel® Arc™ Graphics
Dimensions (W x D x H)12.34" x 8.58" x 0.57" ~ 0.78"
Weight3.64 lbs
CPU TypeIntel Core Ultra 9 (Series 2)
Processor NameIntel Core Ultra 9 285H
Number of Cores16
Core NameArrow Lake
Turbo FrequencyMax Turbo Frequency 5.4 GHz
CPU L3 Cache24 MB
Screen Size14.0"
TouchscreenTouch Screen
Display Type3K WQXGA+ OLED
Resolution2880 x 1800
Refresh Rate120Hz
Color GamutDCI-P3:100%
Display FeaturesOLED
GPU/VPUIntel Arc Graphics
Video MemoryShared system memory
Graphic TypeDedicated Card
SSD1TB
HDDNo
Storage Spec1 TB M.2 PCIe 4.0 x4 NVMe SSD
Memory Spec32 GB On-Board
Max Memory Supported32GB
WLANWi-Fi 7(802.11be) (Tri-band)2*2
WiFi Generation7
BluetoothBluetooth® 5.4
USB1x USB 3.2 Gen 1 Type-A
Thunderbolt2x Thunderbolt™ 4 with support for display / power delivery (data speed up to 40Gbps)
HDMI1x HDMI 2.1 TMDS
Audio Ports1 x 3.5mm Combo Audio Jack, 1 x Built-in array microphone
AudioSmart Amp Technology, harman/kardon (Premium) with Cortana support
SpeakerBuilt-in speaker
TouchpadPrecision touchpad
KeyboardSoft Keyboard, 1.4mm Key-travel
Backlit KeyboardBacklit
StyleThin and Light
TypeWork / Business
UsageConsumer
AC Adapter/ChargerTYPE-C, 65W AC Adapter, Output: 20V DC, 3.25A, 65W, Input: 100-240V AC 50/60GHz universal
Battery75WHrs, 4S1P, 4-cell Li-ion

Questions about this item

What does the PCIe 4.0 x4 NVMe interface cap at in real-world transfer speeds?

The 1 TB M.2 PCIe 4.0 x4 NVMe SSD delivers sequential reads up to about 7 GB/s and writes near 5 GB/s, so large game installs and project files load in seconds rather than minutes.

What are the exact chassis dimensions and weight so I can check if it fits my sleeve or bag?

The laptop measures 12.34" wide, 8.58" deep and between 0.57" and 0.78" thick, weighing 3.64 lbs — a compact footprint for a dual-screen 14" device.

How is the Gelid GC Extreme thermal paste applied during the HIDevolution build, and what step do first-time owners often miss?

Technicians disassemble the cooling assembly, clean both dies, apply a thin even layer of Gelid GC Extreme on the CPU and GPU, then reassemble; owners sometimes skip the BIOS update that enables the new fan curves, so run the ASUS MyASUS live update before heavy workloads.

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