ASUS Zenbook 14 UX3405CA-QD1756X 14" Laptop (UX3405CAQD1756X) - Intel Core Ultra 7 255H, 16GB RAM, 1TB SSD, Windows 11 Pro
£1,674.99
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Key specs
- Panel typeOLED
- Display resolution1920 x 1200 pixels
- Display diagonal35.6 cm (14")
- Processor model255H
- Internal memory16 GB
- Internal memory typeLPDDR5x-SDRAM
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- UK manufacturer warranty Details
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- Rated 4.9/5 by customers on Trustpilot & Feefo Read reviews
Overview
New Zen with AI
Go the extra mile with the remarkably sleek Zenbook 14 — the ultimate ultraportable laptop that takes sophistication to a whole new level. Seize every moment using the enhanced extended-life battery, amplify your efficiency with the top-tier Intel® Core™ Ultra processor (Series 2) and Intel Arc™ graphics, and achieve seamless connectivity via all the essential ports. Immerse your senses in the vivid ASUS Lumina OLED1 touchscreen2 and powerful new Super-linear speakers, while embracing the eco-elegance of the environmentally conscious design.
Specifications
Design
| Colour name | Foggy Silver |
|---|---|
| Product type | Laptop |
| Market positioning | Home |
| Housing material | Aluminium |
| Form factor | Clamshell |
| Product colour | Silver |
| Introduction year | 2025 |
| Display back cover material | Aluminium |
Display
| HD type | WUXGA |
|---|---|
| Display number of colours | 1.07 billion colours |
| Display surface | Gloss |
| Panel type | OLED |
| Display brightness | 400 cd/m² |
| Display response rise/fall | 0.2 ms |
| Contrast ratio (typical) | 1000000:1 |
| Touchscreen | No |
| Display resolution | 1920 x 1200 pixels |
| Display diagonal | 35.6 cm (14") |
| Maximum refresh rate | 60 Hz |
| RGB colour space | DCI-P3 |
| High Dynamic Range (HDR) technology | DisplayHDR True Black 600 |
| Colour gamut | 100% |
| Native aspect ratio | 16:10 |
| High Dynamic Range (HDR) supported | Yes |
| Maximum display brightness (HDR) | 600 cd/m² |
| Low Blue Light technology | Yes |
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Processor
| Processor generation | Intel Core Ultra (Series 2) |
|---|---|
| Processor cache type | Smart Cache |
| Processor cache | 24 MB |
| Processor model | 255H |
| Processor boost frequency | 5.1 GHz |
| Processor cores | 16 |
| Processor threads | 16 |
| Processor socket | BGA 2049 |
| Processor manufacturer | Intel |
| Processor family | Intel Core Ultra 7 |
| Processor base power | 28 W |
| Maximum turbo power | 115 W |
| Efficient-core base frequency | 1.5 GHz |
| Performance-core base frequency | 2 GHz |
| Efficient-core Max Turbo Frequency | 4.4 GHz |
| Performance-core Max Turbo Frequency | 5.1 GHz |
| Performance cores | 6 |
| Efficient cores | 8 |
| Low Power Efficient-core Base Frequency | 700 MHz |
| Low Power Efficient-core Max Turbo Frequency | 2.5 GHz |
| Low Power Efficient-cores | 2 |
Neural processor unit (NPU)
| Neural processor unit (NPU) | Intel AI Boost |
|---|---|
| Sparsity support | Yes |
| Windows Studio effects support | Yes |
| AI software frameworks supported by NPU | DirectML, OpenVINO, Windows ML, ONNX RT, WebNN |
| Total processor performance up to | 96 TOPs |
| NPU performance up to | 13 TOPs |
| GPU performance up to | 74 TOPs |
Memory
| Memory form factor | On-board |
|---|---|
| Internal memory | 16 GB |
| Internal memory type | LPDDR5x-SDRAM |
| Maximum internal memory | 16 GB |
| Memory channels | Dual-channel |
Storage
| SSD form factor | M.2 |
|---|---|
| Storage media | SSD |
| Optical drive type | No |
| Number of SSDs installed | 1 |
| SSD capacity | 1 TB |
| SSD interface | PCI Express 4.0 |
| Total storage capacity | 1 TB |
| Total SSDs capacity | 1 TB |
| NVMe | Yes |
Graphics
| Discrete graphics card | No |
|---|---|
| On-board graphics card family | Intel Arc Graphics |
| On-board graphics card | Yes |
| On-board graphics card model | Intel Arc 140T |
| Discrete graphics card model | Not available |
| On-board GPU manufacturer | Intel |
Audio
| Audio system | Smart Amp |
|---|---|
| Built-in microphone | Yes |
Camera
| Front camera | Yes |
|---|---|
| Front camera resolution | 1920 x 1080 pixels |
| Privacy camera | Yes |
| Privacy type | Privacy shutter |
| Front camera HD type | Full HD |
| Infrared (IR) camera | Yes |
| Windows Hello | Yes |
Network
| Mobile network connection | No |
|---|---|
| Top Wi-Fi standard | Wi-Fi 7 (802.11be) |
| Wi-Fi standards | Wi-Fi 7 (802.11be) |
| Ethernet LAN | No |
| Bluetooth | Yes |
| Bluetooth version | 5.4 |
| Antenna type | 2x2 |
Ports & interfaces
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 1 |
|---|---|
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity | 0 |
| USB Type-C DisplayPort Alternate Mode | Yes |
| USB 2.0 ports quantity | 0 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| Combo headphone/mic port | Yes |
| USB Power Delivery (USB PD) | Yes |
| Thunderbolt 4 ports quantity | 2 |
| Intel® Thunderbolt 4 | Yes |
Keyboard
| Pointing device | Touchpad |
|---|---|
| Numeric keypad | No |
| Keyboard backlit | Yes |
Software
| Operating system architecture | 64-bit |
|---|---|
| Bundled software | 3-Month GoPro Premium+ Subscription 1-Month Membership of Adobe Creative Cloud All Apps, Individual. The redemption duration from September 15, 2021 to August 31, 2026. N/A 6-Month Dropbox 500GB Subscription 1-Year ASUS Secure Auto-Backup 200GB Subscription *Available in eligible markets only. Eligibility varies by region, device, and time. Terms and conditions apply. See promotion pages for details. |
| Trial software | 1-month trial for new Microsoft 365 customers; McAfee 30 days free trial |
| Operating system installed | Windows 11 Pro |
Battery
| Battery technology | Lithium-Ion (Li-Ion) |
|---|---|
| Number of battery cells | 4 |
| Battery capacity | 75 Wh |
Power
| AC adapter frequency | 50 - 60 Hz |
|---|---|
| AC adapter input voltage | 100 - 240 V |
| USB Type-C charging port | Yes |
| USB Type-C required charging power (min) | 45 W |
| USB Type-C required charging power (max) | 65 W |
Security
| Trusted Platform Module (TPM) | Yes |
|---|---|
| Face recognition | Yes |
Certificates
| Compliance certificates | REACH |
|---|
Sustainability
| Sustainability certificates | ENERGY STAR, EPEAT Gold |
|---|
Weight & dimensions
| Width | 312.4 mm |
|---|---|
| Depth | 220.1 mm |
| Height | 14.9 mm |
| Weight | 1.22 kg |
Manuals & downloads
Customer reviews
Delivery & returns
Delivery
- FREE standard delivery on orders over £50, otherwise £4.95 (3–5 working days).
- Express delivery £9.99 (1–3 working days) on selected products, UK mainland.
- PlayStation and Arozzi products use a 5–7 working-day service.
- Orders are processed within 24 hours, Monday to Friday excluding bank holidays. All deliveries must be signed for.
Returns
- Changed your mind? Tell us within 14 days of receiving your item, then return it within a further 14 days, unused and in its original packaging. A minimum £9.99 collection fee applies.
- Faulty or damaged on arrival? Contact us within 48 hours of delivery.
- Custom-built PCs can only be returned if faulty. Opened headphones, earphones and AirPods can't be returned for hygiene reasons.
