Samsung LC34J791WTPXXU computer monitor 86.4 cm (34") 3440 x 1440 pixels 4K Ultra HD LED Grey

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34" CJ791 Ultra WQHD Curved Monitor with Speakers, 3440 x 1440, 21:9, 1500R, 300cd/㎡, 10~40 ℃
SKU
LC34J791WTPXXU
UNSPSC: 43211902
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.

34” Ultra-Wide Screen
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.

PBP and PIP
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.


Audio
Built-in speaker(s)Yes
Performance
Built-in speaker(s)Yes
Built-in cameraNo
AMD FreeSyncYes
Game modeYes
Flicker-free technologyYes
Display
Display brightness (typical)300 cd/m²
Screen shapeCurved
Display number of colours16.7 million colours
Native aspect ratio21:9
Colour gamut92%
Maximum refresh rate100 Hz
sRGB coverage (typical)125%
Adobe RGB coverage92%
HD type4K Ultra HD
Display technologyLED
Viewing angle, horizontal178°
Viewing angle, vertical178°
Display resolution3440 x 1440 pixels
Response time4 ms
Display diagonal86.4 cm (34")
Contrast ratio (typical)3000:1
NTSC coverage (typical)88%
Panel typeVA
Screen curvature rating1200R
Display diagonal (metric)86 cm
Management features
Picture-in-PictureYes
Multimedia
Built-in speaker(s)Yes
Built-in cameraNo
Power
Power cable length1.5 m
Power supply typeExternal
Power consumption (max)180 W
Power consumption (standby)0.5 W
Power consumption (typical)32 W
Power consumption (off)0.3 W
Energy efficiency scaleA to G
Energy efficiency class (SDR)G
Energy efficiency class (HDR)Not available
Energy consumption (SDR) per 1000 hours32 kWh
Design
Market positioningGaming
Product colourGrey
Camera
Built-in cameraNo
Ports & interfaces
Built-in USB hubYes
USB hub version3.2 Gen 1 (3.1 Gen 1)
Headphone outYes
HDMI ports quantity1
DisplayPorts quantity1
HDMIYes
HDMI version2.0
DisplayPort version1.2
Thunderbolt 3 ports quantity2
Technical details
Height (without stand)362.8 mm
Depth (without stand)167 mm
Width (without stand)808.7 mm
HDMIYes
Product colourGrey
Power supply typeExternal
Game modeYes
Weight (with stand)7.7 kg
Ergonomics
Wall mountableYes
VESA mountingYes
Panel mounting interface100 x 100 mm
Tilt angle range-14 - 22°
Height adjustment10 cm
Picture-in-PictureYes
Height adjustmentYes
Tilt adjustmentYes
Operational conditions
Operating temperature (T-T)10 - 40 °C
Operating relative humidity (H-H)10 - 80%
Packaging content
Power cable length1.5 m
Cables includedAC, HDMI, Thunderbolt
Weight & dimensions
Height (without stand)362.8 mm
Depth (without stand)167 mm
Width (without stand)808.7 mm
Width (with stand)808.7 mm
Depth (with stand)309.4 mm
Height (with stand)516 mm
Weight (with stand)7.7 kg
Weight (without stand)6.3 kg
Package width896 mm
Package depth371 mm
Package height589 mm
Package weight13.9 kg
Packaging data
Package width896 mm
Package depth371 mm
Package height589 mm
Package weight13.9 kg
Package typeBox
Power cable length1.5 m
Cables includedAC, HDMI, Thunderbolt
Other features
Game modeYes
Height (without stand)362.8 mm
Depth (without stand)167 mm
Width (without stand)808.7 mm
Power consumption (max)180 W
HDMIYes
Energy efficiency scaleA to G
Power supply typeExternal
Power cable length1.5 m
Package typeBox
SKU LC34J791WTPXXU
EAN 8806094771848
Specification
Audio
Built-in speaker(s)Yes
Performance
Built-in speaker(s)Yes
Built-in cameraNo
AMD FreeSyncYes
Game modeYes
Flicker-free technologyYes
Display
Display brightness (typical)300 cd/m²
Screen shapeCurved
Display number of colours16.7 million colours
Native aspect ratio21:9
Colour gamut92%
Maximum refresh rate100 Hz
sRGB coverage (typical)125%
Adobe RGB coverage92%
HD type4K Ultra HD
Display technologyLED
Viewing angle, horizontal178°
Viewing angle, vertical178°
Display resolution3440 x 1440 pixels
Response time4 ms
Display diagonal86.4 cm (34")
Contrast ratio (typical)3000:1
NTSC coverage (typical)88%
Panel typeVA
Screen curvature rating1200R
Display diagonal (metric)86 cm
Management features
Picture-in-PictureYes
Multimedia
Built-in speaker(s)Yes
Built-in cameraNo
Power
Power cable length1.5 m
Power supply typeExternal
Power consumption (max)180 W
Power consumption (standby)0.5 W
Power consumption (typical)32 W
Power consumption (off)0.3 W
Energy efficiency scaleA to G
Energy efficiency class (SDR)G
Energy efficiency class (HDR)Not available
Energy consumption (SDR) per 1000 hours32 kWh
Design
Market positioningGaming
Product colourGrey
Camera
Built-in cameraNo
Ports & interfaces
Built-in USB hubYes
USB hub version3.2 Gen 1 (3.1 Gen 1)
Headphone outYes
HDMI ports quantity1
DisplayPorts quantity1
HDMIYes
HDMI version2.0
DisplayPort version1.2
Thunderbolt 3 ports quantity2
Technical details
Height (without stand)362.8 mm
Depth (without stand)167 mm
Width (without stand)808.7 mm
HDMIYes
Product colourGrey
Power supply typeExternal
Game modeYes
Weight (with stand)7.7 kg
Ergonomics
Wall mountableYes
VESA mountingYes
Panel mounting interface100 x 100 mm
Tilt angle range-14 - 22°
Height adjustment10 cm
Picture-in-PictureYes
Height adjustmentYes
Tilt adjustmentYes
Operational conditions
Operating temperature (T-T)10 - 40 °C
Operating relative humidity (H-H)10 - 80%
Packaging content
Power cable length1.5 m
Cables includedAC, HDMI, Thunderbolt
Weight & dimensions
Height (without stand)362.8 mm
Depth (without stand)167 mm
Width (without stand)808.7 mm
Width (with stand)808.7 mm
Depth (with stand)309.4 mm
Height (with stand)516 mm
Weight (with stand)7.7 kg
Weight (without stand)6.3 kg
Package width896 mm
Package depth371 mm
Package height589 mm
Package weight13.9 kg
Packaging data
Package width896 mm
Package depth371 mm
Package height589 mm
Package weight13.9 kg
Package typeBox
Power cable length1.5 m
Cables includedAC, HDMI, Thunderbolt
Other features
Game modeYes
Height (without stand)362.8 mm
Depth (without stand)167 mm
Width (without stand)808.7 mm
Power consumption (max)180 W
HDMIYes
Energy efficiency scaleA to G
Power supply typeExternal
Power cable length1.5 m
Package typeBox
Manufacturer Samsung
In Stock N