Samsung 34" Wide ScreenThunderbolt 3 Curved Monitor

QuickFind: 861762 Mfr part code: LC34J791WTUXEN
  • 3440 x 1440 2K QHD
  • DisplayPort & HDMI
  • 100Hz / 4ms Response Time
  • Panel Type: VA
  • 1500R Curved Screen

Product Description

Samsung 34" Wide ScreenThunderbolt 3 Curved Monitor

3440 x 1440 (N/A)
Refresh Rate
100 Hz
Wall Mountable
100 x 100
Height Adjustable
Response Time
4 ms
Panel Type
Adaptive Sync Type
Free Sync
Contrast Ratio
3000 : 1
Cables Included
1 x HDMI

Connect to Infinite Possibilities

Thunderbolt 3

World's First Thunderbolt 3 Curved Monitor

The CJ79 features two Thunderbolt 3 ports to connect compatible Macs and PCs. Thunderbolt 3 transmits video and data at speeds of up to 40Gbps - 8 times faster than USB 3.0 - and simultaneously charges devices (up to 85W), all over a single cable.

Curved for Comfort

The curved screen is engineered to follow the natural curve of your eyes for a more immersive and comfortable viewing experience. Studies by Harvard Medical School and Seoul National University Hospital found the screen reduced eyestrain in users compared to flat screens and less curved monitors.

Connect to Infinite Possibilities

The 34" ultra-wide curved display with its 21:9 aspect ratio provides all the workspace you need to multi-task efficiently and in comfort. Forget about inconvenient dual monitor set ups and experience truly seamless multitasking on a single screen.

Multiple Inputs

Two Thunderbolt 3 ports as well as, DP, HDMI and USB inputs, the CJ79 provide multiple connection options for PCs, consoles and external devices. And the built-in 7-watt stereo speakers offer an enhanced entertainment experience when viewing videos and playing games.


Picture-by-Picture (PBP) lets you display to two sources onscreen at their native resolution. And for optimal multi-tasking, with Picture-in-Picture (PIP) you can resize the second source to up to 25% of the screen and position it anywhere.

Quantum Dot Colour

Supporting up to 125% sRGB colour space, Quantum Dot technology delivers not only more hues than conventional monitors but also colours that are brighter, crisper and more natural - especially reds and greens. And every monitor is factory calibrated to ensure the most accurate and life-like images.

3000:1 Contrast Ratio

Samsung's VA panel technology provides a 3000:1 contrast ratio that delivers deeper blacks, brilliant whites, and richer colours for clearer, more vibrant movie and game scenes.

AMD FreeSync

AMD FreeSync synchronizes the refresh rates of your graphics card and the CJ79 to minimise image tearing and stutter. The smoother transition between image frames provides seamless gameplay and video playback for uninterrupted viewing.

7W Stereo Speakers

The built-in 7W stereo speakers provide a powerful soundstage for you to enjoy all your music, movies and games in rich, clear sound while also saving space on your desk.

Smoother Gameplay

The fast 100 Hz screen refresh rate provides smoother, silkier mouse sensitivity for enhanced productivity in any application. It also reduces screen stutter in fast-moving action scenes for a flawless gaming experience.

Stylish Design

With its curved screen bezeless on three sides for enhanced viewing and its rear panel - finished in glossy white and curving horizontally and vertically - neatly concealing cables, the CJ79's slim and striking profile is the perfect complement to any Thunderbolt 3 Mac or PC.

Technical Specification

Samsung 34" Wide ScreenThunderbolt 3 Curved Monitor


Flat Panel Mount Interface 100 x 100 mm
Display Position Adjustments Height, tilt
Tilt Angle -14/+34
Height Adjustment 100 mm
VESA Mounting Interface 100 x 100 mm


Features MagicBright, 92% colour gamut, game mode, Mega Dynamic Contrast Ratio, 92% Adobe RGB colour gamut, Magic Upscale, Flicker Free technology, daisy chain compatible, PBP, Factory Calibration, Eco Saving Plus, Eye Saver Mode, Quantum Dot Technology, 125% sRGB colour gamut, 88% (NTSC 1976) colour gamut, Picture-in-Picture, Picture-by-Picture
Power Consumption (On mode) 65 W
Energy Class Class G
Energy Consumption per Year 95 kWh
Colour Grey
Dimensions (WxDxH) 80.87 cm x 30.94 cm x 51.6 cm - with stand
Weight 7.7 kg
Display Type LED-backlit LCD monitor / TFT active matrix
Diagonal Size 34"
Viewable Size 34"
Curved Screen Yes (1500R)
Adaptive-Sync Technology AMD FreeSync
Built-in Devices USB 2.0 hub
Panel Type VA
Aspect Ratio 21:9
Native Resolution Ultra WQHD 3440 x 1440 at 100 Hz
Brightness 300 cd/m²
Contrast Ratio 3000:1
Colour Support 16.7 million colours
Response Time 4 ms (grey-to-grey)
Horizontal Viewing Angle 178
Vertical Viewing Angle 178
Backlight Technology LED backlight


Interfaces DisplayPort ¦ HDMI ¦ Headphones ¦ Thunderbolt 3 (power up to 85W) ¦ Thunderbolt 3 (power up to 15W) ¦ 2 x USB 2.0 downstream


Power Consumption (On mode) 65 W
Voltage Required AC 120/230 V
Input Voltage AC 120/230 V
Power Consumption SDR (On mode) 65 kWh/1000h
Power Consumption (Off Mode) 0.3 Watt


Type Speakers - stereo
Output Power / Channel 7 Watt


Cables Included 1 x HDMI cable
Compliant Standards DisplayPort 1.2

Software / System Requirements

Included Software Easy Setting Box

Dimensions & Weight

Dimensions & Weight Details With stand - width: 80.87 cm - depth: 30.94 cm - height: 51.6 cm - weight: 7.7 kg ¦ Without stand - width: 80.87 cm - depth: 16.7 cm - height: 36.28 cm - weight: 6.3 kg

Dimensions & Weight (Shipping)

Shipping Width 89.6 cm
Shipping Depth 37.1 cm
Shipping Height 58.9 cm
Shipping Weight 13.9 kg

Environmental Parameters

Min Operating Temperature 10 °C
Max Operating Temperature 40 °C
Humidity Range Operating 10 - 80% (non-condensing)

Product Reviews

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Samsung 34" Wide ScreenThunderbolt 3 Curved Monitor

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Samsung 34" Wide ScreenThunderbolt 3 Curved Monitor

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