34”  UWQHD 21:9 Docking Monitor with Dual 100W and 15W USB-C for Quick Charging 

  • Ultrawide QHD 21:9 monitor with incredible visuals
  • Integrated docking station with ethernet and dual USB-C ports
  • 15W quick charging for mobile devices via USB-C connection
  • 100Hz variable refresh rate for smooth visuals
  • Low blue light eye-care technology ensures comfortable viewing


Featuring a 34" ultrawide QHD 3440 x 1440p resolution (21:9 ratio) and a 100Hz refresh rate, the ViewSonic VG3456a monitor elevates your viewing experience to immersive excellence. With dual 100W and 15W USB-C ports and ethernet connectivity, this docking monitor serves as a comprehensive hub for peripheral charging, data transfer, and network connectivity, effectively reducing cable clutter. Designed for multitasking and productivity, it offers advanced ergonomics with tilt, swivel, and height adjustments for your comfort. Additionally, the vDisplay Manager software provides intuitive on-screen control of display settings and shortcuts.

Stunning UWQHD Resolution on a 21:9 Ultrawide Screen

Boasting UWQHD resolution (3440 x 1440), this monitor offers 35% more screen space than a Full HD monitor of the same size. Its super-detailed images help make work more enjoyable and productive. With an ultrawide 21:9 aspect ratio, any game or movie becomes an immersive journey into a different world.
UWQHD 3440 x 1440, Ultra-wide 21:9
Stunning UWQHD Resolution on a 21:9 Ultrawide Screen 1

Free Up Your Laptop Ports

Simplify your setup with the VG3456a docking monitor. It features a USB-C port for seamless data, video, and audio transfer, along with robust up to 100W power delivery to charge your laptop. Plus, the built-in 10/100/1000 Mbps gigabit Ethernet port (RJ45) ensures unmatched network speed and stability, enhancing productivity and security.
*When displaying at 3440x1440 resolution with a 75/100Hz refresh rate via USB-C, data transfer and Ethernet speed will be limited to USB 2.0 rates. For more details, please refer to the VG3456a user guide.
USB-C and Ethernet Port
Free Up Your Laptop Ports 1
Free Up Your Laptop Ports 2

Smooth Visuals with 100Hz Refresh Rate

Experience smooth and comfortable viewing with the VG3456a's 100Hz refresh rate, designed to reduce eye strain even during prolonged use.
100Hz Refresh Rate
Smooth Visuals with 100Hz Refresh Rate 1

Power Up and Speed On

An additional 15W USB-C port provides extra connectivity options and rapid charging for phones and other mobile devices, ensuring they're always ready to go when you are.
15W Quick Charging
Power Up and Speed On 1

Eye ProTech+ for Always-on Eye Protection

Work comfortably over extended periods with ViewSonic Eye ProTech+. Combining Flicker-Free technology with a built-in low blue light screen, this monitor helps maintain fresh-feeling eyes and prevent digital eye fatigue at all times without compromising image quality.
Flicker-Free, Low Blue Light Monitor
Eye ProTech+ for Always-on Eye Protection 1

Immersive Audio

Designed with dual 5W front-firing speakers, the VG3456a offers incredible screen performance paired with rich stereo sound for an unparalleled audiovisual experience.
Dual 5W Front-Facing Speakers
Immersive Audio 1

Elegant Aesthetics

Break free from bulky frames with the sleek 3-side frameless screen. Beautifully blending form and function, the woven fabric design features integrated touch keys.
Ultra-thin Bezels / Fabric Design Touch Hotkeys
Elegant Aesthetics 1

A New Angle on Workplace Ergonomics

Enjoy every detail with advanced ergonomics – swivel, height adjustment, and a 40° ergonomic tilt angle. Each provides a greater range of customizable adjustment for maximum comfort. The 40° tilt also enables you to use the monitor while standing or having a strategic group discussion around the screen.
Swivel +/-60°, Tilt -5°~40°, Height Adjust 0~110 mm
A New Angle on Workplace Ergonomics 1

Free of Cable Clutter

In addition to the clutter-reducing USB-C connectivity, the monitor's stand is designed with a clean workspace in mind, featuring cable management and client mount capabilities
Cable Management & Client Mount Kit
Free of Cable Clutter 1

Efficiency Software

Work smart with efficient OSD command and control through vDisplay Manager. Personalize split-screen displays, auto-launch applications, and customize display settings to maximize multi-tasking abilities and overall efficiency. *Download vDisplay Manager
vDisplay Manager Software
Efficiency Software 1

Certified Environmental Sustainability

The VG3456a is an EnergyStar and EPEAT-certified product that can save on energy costs while reducing greenhouse gases.
*Energy savings may vary based on actual usage and other factors.
*Certifications and safety regulations are dependent on the purchase area.
EnergyStar & EPEAT
Certified Environmental Sustainability 1

Effortless Installation in 4 Easy Steps

The VG3456a’s design allows for quick assembly with no expertise required. Simply open the box, connect the base to the quick-release stand, snap the stand into place using the slots, and you’ll have the fully assembled display out of the box within seconds.
Quick Assembly Design
Effortless Installation in 4 Easy Steps 1

Eco-friendly Packaging

The VG3456a is shipped in paper-based packaging for easy recycling. The packaging is reinforced with hand holes and printed with monochrome ink to avoid the use of plastics and reduce pollutants.
Eco-friendly, Paper-based Packaging
Eco-friendly Packaging 1

Dimension & I/O Ports

Conveniently mount the monitor to your preference by utilizing the 100mm x 100mm VESA-compatible mount design.
100mm x 100mm VESA mount
  1. Spaekers
  2. Menu Control Panel
  3. VESA Compatible
    (Wall Mount 100 x 100mm)
  4. Power In
  5. HDMI*2
  6. DisplayPort
  7. USB Type C
  8. Ethernet (RJ45)
  9. USB Type A 3.2 DownStream*2
  10. USB Type A 3.2 DownStream*2
  11. USB Type C ( Quick Charging )


  • Display
    Display Size (in.): 34
    Viewable Area (in.): 34.1
    Panel Type: IPS Technology
    Resolution: 3440 x 1440
    Resolution Type: UWQHD (UltraWide QHD)
    Static Contrast Ratio: 1,000:1 (typ)
    Dynamic Contrast Ratio: 80M:1
    Light Source: LED
    Brightness: 300 cd/m² (typ)
    Colors: 16.7M
    Color Space Support: 8 bit true
    Aspect Ratio: 21:9
    Response Time (Typical GTG): 5ms
    Response Time (GTG w/OD): 5ms
    Viewing Angles: 178º horizontal, 178º vertical
    Backlight Life (Hours): 30000 Hrs (Min)
    Curvature: Flat
    Refresh Rate (Hz): 100
    Variable Refresh Rate Technology: Yes
    Low Blue Light: Hardware solution
    Flicker-Free: Yes
    Color Gamut: NTSC: 85% size (Typ)
    sRGB: 121% size / 100% coverage (Typ)
    Pixel Size: 0.233 mm (H) x 0.233 mm (V)
    Surface Treatment: Anti-Glare, Hard Coating (3H)
  • Compatibility
    PC Resolution (max): 3440x1440
    Mac® Resolution (max): 3440x1440
    PC Operating System: Windows 10/11 certified; macOS tested
    Mac® Resolution (min): 3440x1440
  • Connector
    USB 3.1 Type C - Downstream: 1
    USB 3.2 Type A Down Stream: 4
    USB 3.2 Type C Up Stream; DisplayPort Alt mode : 1 (98W power charger)
    HDMI 2.0: 2
    DisplayPort: 1
    Power in: 3-pin Socket (IEC C14 / CEE22)
    Ethernet LAN (RJ45): 1