- Features
- Specifications
- Documents Compatibility
- Accessories
- Awards & Reviews
Contoured to Your Workstyle with an Ultrawide, Curved Screen
Make the Most of Your Large Screen
Get Connected. Get Started.
Aesthetically Pleasing Design
Say Goodbye to Tired Eyes
Care for the Environment and You
Our Contribution to SDGs
World's First 7-Year Monitor Warranty for Long-Term Peace of Mind
EIZO designs and manufactures its monitors in-house with uncompromising quality and reliability, ensuring comfort and confidence every day.
7 Years of Confidence
With the world's first1 7-year monitor warranty2 from the date of purchase, the monitor provides long‑term assurance of dependable performance. The monitor is engineered for exceptional quality and reliability and is supported by a comprehensive service framework.
1 According to EIZO's research as of June 2026.
2 Usage time is limited to 30,000 hours.
An interview with the team behind the world's first 7-year monitor warranty.
Integrated Approach
EIZO’s commitment to quality extends throughout the entire production process. Every stage, including research and development, manufacturing, and quality control, is carried out in‑house. This integrated approach enables precise control over components, assembly, and quality assurance. As a result, EIZO is able to offer a 7‑year warranty with confidence in the long‑term reliability of its products.
Integrated Production - Made in Japan
Contoured to Your Workstyle with an
Ultrawide, Curved Screen
More Space, Seamless Viewing
This 34.1‑inch ultrawide, curved monitor features a UWQHD resolution (3440 x 1440 pixels) with a 21:9 aspect ratio, delivering 2.4 times the resolution of Full HD (1920 x 1080 pixels). It provides an expanded workspace for flexible arrangement of multiple applications without the obtrusive bezels characteristic of multi-monitor setups.
More compact than multi-monitor, everything on one screen.
See Everything at a Comfortable Distance
When you sit close to a large monitor, the far edges naturally fall farther from your eyes. A curved monitor brings those edges gently toward you, creating a more uniform viewing distance that enhances visibility, focus, and immersion.
Make the Most of Your Large Screen
Convenient Multi-Input Connection
The Picture-by-Picture (PbyP) function enables simultaneous display of two connected PCs on a single screen, creating a space-saving workspace without the need for multiple monitors. Input switching can be quickly operated via the monitor’s front buttons or keyboard hotkeys, supporting an efficient dual-PC working environment.
One Keyboard and Mouse Across Multiple PCs
The built-in KVM switch function allows you to share a single USB mouse and keyboard across multiple PCs. Simply connect them to the monitor’s USB hub and switch control between PCs using the monitor’s front buttons or keyboard hotkeys.
Hotkey operation is available only in PbyP display mode.
Preset for Video Production
The monitor includes a preset for BT.709, the standard for HD video production, for content creation and video preview tasks. You can switch display modes easily using the monitor's front buttons.
Get Connected. Get Started.
The monitor’s USB Type‑C® connection transmits video, audio, USB data, power, and even network signals through a single cable. This all‑in‑one solution makes docking your laptop quick and effortless, making it ideal for hot-desking or home offices.
Power Delivery
The 94 watt power delivery via USB Type-C reliably charges laptops or small desktop PCs. This eliminates the need for a laptop's bulky power supply unit, freeing up space in your bag and on your desk.
Stable Network Connection
The monitor has a built‑in LAN port for a stable wired connection. When you connect laptop via USB Type‑C, it can access the network directly through the monitor, enabling you to conduct conference calls or data transfers reliably and at high speed. |
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Directly Connect Peripherals
As modern laptops become thinner and more portable, their peripheral connectivity is increasingly limited. The monitor includes a 4‑port USB hub with an additional USB Type‑C port and three USB Type‑A ports for convenient connection to peripherals such as a keyboard, mouse, or USB storage devices.
Aesthetically Pleasing Design
The monitor's slim bezel design embraces minimalism for an immersive experience.
Tap below to see how EIZO fits into your workspace with augmented reality.
- Supported Models:
- iPhone 6s or later, iPad (5th generation or later)
- Supported Browsers:
- Safari, Chrome
Tap below to see how EIZO fits into your workspace with augmented reality.
- Supported Models:
- ARCore supported Android devices
- Supported Browsers:
- Chrome
-
Scan the code using your smartphone or tablet
to see how EIZO fits into your environment with augmented reality. - Supported Models:
- iPhone 6s or later, iPad (5th generation or later)
ARCore supported Android devices - Supported Browsers:
- Safari, Chrome
Color Coordination to Suit Your Workspace
The monitor cabinet is available in white or black. Matching white or black stands and cables are available for a coordinated look. You can choose white for a bright and inviting tone, or black for a chic and relaxed tone.
Connectivity and Flexibility
The monitor is equipped with USB Type-C, DisplayPort™, and HDMI® video inputs, allowing connection to a wide range of PCs. This makes it ideal for hot‑desking environments and open workspaces.
Say Goodbye to Tired Eyes
The monitor includes features that help reduce eye strain throughout the day, supporting better focus and comfort.
Auto Brightness ControlTo prevent eye fatigue, a brightness sensor called Auto EcoView detects the changes in the ambient brightness that occur throughout the day and automatically adjusts the screen to the ideal brightness level. |
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Reduce Blue Light by 80%Paper Mode reduces the amount of blue light emitted from the monitor, helping to prevent eye fatigue when reading digital documents. When used in conjunction with the Auto EcoView auto-dimming function, blue light is reduced by up to 80%. |
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Flicker-Free ViewingDue to the way brightness is controlled on LED backlights, some people experience flicker on the screen, causing eye fatigue. The monitor uses a hybrid solution to regulate brightness and eliminate perceived flicker without compromising color stability, even at low brightness settings. |
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Minimum Brightness of 1 cd/m2In a dimly lit work environment, a monitor with low brightness settings is more comfortable to use. The monitor is adjustable to approximately 1 cd/m², which is less than 1% of the maximum. |
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Care for the Environment and You
EIZO is committed to environmentally conscious product development, from the manufacturing process to the user experience.
Low Environmental Impact MaterialsA portion of the plastic used in the monitor is recycled plastic. This reduces the amount of plastic waste entering the environment, conserves resources, and promotes the reuse of materials to preserve our natural ecosystems. |
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Eco-Conscious PackagingEIZO is reducing its environmental impact by transitioning away from plastic and other environmentally unfriendly materials in product packaging. The monitor is safely packed in molded pulp made from recycled cardboard and newspaper, and its cables are wrapped in paper instead of plastic bags. |
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Effortlessly Save on Power Consumption
The monitor’s Auto EcoView function uses a front-facing sensor to measure ambient light and automatically adjusts screen brightness throughout the day for optimal viewing. EcoView Optimizer 2 further fine-tunes brightness based on screen content to maintain visibility while conserving energy. Selecting the Eco Mode preset keeps both functions active, helping reduce power consumption up to 60%* compared to operating at maximum brightness.
*Compared to power consumption with no USB devices connected and brightness set to maximum.
Certified for Sustainability
The monitor is certified to globally recognized sustainability standards, including ENERGY STAR, TCO Certified, generation 10, EPEAT, and the EPEAT Climate+ designation. These independent certifications support users and organizations working towards ESG (environmental, social, and governance) and SDG (sustainable development goals) objectives.
Our Contribution to SDGs
| As part of its sustainability initiatives, EIZO is contributing towards the United Nations' Sustainable Development Goals (SDGs). |
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Environmentally Conscious Product Development FlexScan embodies EIZO's commitment to sustainability through the use of recycled materials and low-impact components. The monitors are optimized for energy efficiency, contributing to lower greenhouse gas (GHG) emissions. EIZO also collects and recycles used products to further minimize environmental impact. We strive to promote efficient and circular resource use across every stage of the product lifecycle - from parts and materials procurement to manufacturing, transportation, user experience, and end-of-life disposal. All production sites at EIZO's headquarters in Japan operate on 100% renewable energy. |
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Workstyle Innovation and Productivity FlexScan offers a versatile lineup and user-friendly features to support a wide range of workstyles. Each monitor can be adjusted to match individual preferences for screen position and display settings, while integrated eye care technologies help reduce eye fatigue during use. With reliable image quality and thoughtful design, FlexScan empowers business professionals to work more efficiently and comfortably. |
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| Model Variations |
EV3451X-BK: with FlexStand, black
EV3451X-WT: with FlexStand, white EV3451X-FBK: without stand, black EV3451X-FWT: without stand, white Note: FlexStand is removable |
|---|---|
| Panel | |
| Type | IPS |
| Backlight | LED |
| Size | 34.1" (86.7 cm) |
| Native Resolution | 3440 x 1440 (21:9 aspect ratio) |
| Viewable Image Size (H x V) | 799.8 x 334.8 mm |
| Pixel Pitch (H x V) | 0.233 x 0.233 mm |
| Pixel Density | 109 ppi |
| Curvature | 3800R |
| Display Colors | 16.77 million |
| Viewing Angles (H / V, typical) | 178° / 178° |
| Brightness (typical) | 350 cd/m2 |
| Contrast Ratio (typical) | 1000:1 |
| Response Time (typical) | 5 ms (gray-to-gray) |
| Color Gamut (typical) | sRGB |
| Video Signals | |
| Input Terminals | USB Type-C (DisplayPort Alt Mode, HDCP 2.3 / 1.3), DisplayPort (HDCP 2.3 / 1.3), HDMI (HDCP 2.3 / 1.4) x 2 |
| Digital Scanning Frequency (H / V) |
USB Type-C: 31 - 152 kHz / 29 - 101 Hz
DisplayPort: 31 - 152 kHz / 29 - 101 Hz HDMI: 31 - 152 kHz / 29 - 101 Hz |
| USB | |
| Upstream |
USB 5Gbps: Type-B,
USB 5Gbps: Type-C (DisplayPort Alt Mode, Power Delivery Source 94 W max.) |
| Downstream |
USB 5Gbps: Type-A x 3,
USB 5Gbps: Type-C (Type-C Current, 15 W max.) |
| USB LAN Adapter |
RJ-45 (2.5GBASE-T)
Windows 11, macOS Monterey (12) or later |
| Audio | |
| Speakers | 2.0 W + 2.0 W |
| Input Terminals | USB Type-C, DisplayPort, HDMI x 2 |
| Output Terminals | Headphones (Stereo mini jack) |
| Power | |
| Power Input | AC 100 - 240 V, 50 / 60 Hz |
| Typical Power Consumption | 15 W |
| Maximum Power Consumption | 204 W |
| Standby Mode | 0.3 W |
| Features & Functions | |
| Preset Modes | User1, User2, Eco, sRGB, Paper, BT.709, DICOM |
| Simultaneous Display | Picture by Picture (2 PbyP) |
| Automatic Brightness Control | Auto EcoView |
| OSD Languages | English, German, French, Italian, Japanese, Simplified Chinese, Spanish, Swedish, Traditional Chinese |
| Physical Specifications | |
| Dimensions (Landscape, W x H x D) | 816 x 382.7 - 577.7 x 242.6 - 250.2 mm |
| Dimensions (Without Stand, W x H x D) | 816 x 368 x 92 mm |
| Net Weight | 11.9 kg |
| Net Weight (Without Stand) | 9.3 kg |
| Height Adjustment Range | 195 mm |
| Tilt | 35° Up, 5° Down |
| Swivel | 90° |
| Hole Spacing (VESA Standard) | 100 x 100 mm |
| Environmental Requirements | |
| Operating Temperature | 5 - 35°C |
| Operating Humidity (R.H., non condensing) | 20 - 80% |
| Certifications & Standards (Please contact EIZO for the latest information.) | TCO Certified, generation 10, EPEAT Gold with Climate+, TUV/Ergonomics, TUV/Low blue light content, TUV/Flicker Free, TUV/GS, RCM, CE, UKCA, CB, cTUVus, FCC-B, CAN ICES (B), TUV/S, PSE, VCCI-B, EPA ENERGY STAR, RoHS, WEEE, China RoHS, CCC |
| Dedicated Software | |
| Monitor Control Utility Screen InStyle | Supported |
| Supplied Accessories (May vary by country. Please contact EIZO for details.) | |
| Signal Cables | USB Type-C (1.5 m), DisplayPort (2 m) |
| Others | AC power cord (2 m), USB Type-A - USB Type-B cable (2 m), connector cover, setup guide |
| Warranty |
7 Years
Zero bright sub-pixels for six months from date of purchase. |
| Dimension Drawing | |
| 2D-CAD (DXF) | 2D-CAD (ZIP) |
- 2 With current LCD / OLED technology, a panel may contain a limited number of missing or flickering pixels.
- 5 If the monitor is left on continuously over a long period of time, dark smudges or burn-in may appear. To maximize the life of the monitor, we recommend the monitor be turned off periodically.
- 16 EPEAT registration varies by country. Please check https://www.epeat.net for registration status.
Brochures
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Manuals
| EV3451X User's manual | English German French Russian Italian Czech Swedish Chinese-Simplified Chinese-Traditional |
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| EV3451X Setup guide | English German French Russian |
2.91 MB |
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| EV3451X Setup guide | Chinese-Simplified | 1.89 MB |
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| EV3451X Setup guide | Chinese-Traditional | 1.94 MB |
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| EV3851X / EV3451X / EV3450XC Assembly Instructions | English German French Russian |
803 KB |
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Compatibility
| Date | Subject |
|---|---|
| March 24, 2026 | How to Change OS Display Settings |
| January 23, 2026 | Apple M series Chip Equipped Mac Computer and Monitor Compatibility |
| August 26, 2025 | Compatibility Issue Causing External Monitor Flicker or Image Burn-In when Connected to Mac Computer with Apple M series Chip |
Dedicated stand bracket for attaching a client terminal to the back of certain FlexScan monitors
VESA mounting plate for attaching an IP decoding box to certain FlexScan monitors using VOP-01
- Monitor control utility
- Multi-monitor power management
- Blue light reduction
- Monitor control utility
- Multi-monitor power management
- Blue light reduction
- Asset management and monitor control software
- Automatic acquisition of monitor and PC device information
- Collective adjustment of monitor color and power settings
- Software to temporarily replace the MAC address of LAN port equipped EIZO monitor with the authenticated MAC address of a connected PC
Interview Article by PC Watch
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