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SAMSUNG 34” ViewFinity CJ79 Series Ultrawide QHD (3440x1440) Computer Monitor, 100Hz, Thunderbolt 3 Daisy Chain, QLED, HDMI, USB Hub, Height Adjustable Stand, LC34J791WTNXZA, White

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Brand	Samsung
Screen Size	34 inches
Resolution	QHD Ultra Wide 1440p
Aspect Ratio	21:9
Screen Surface Description	Curved

About this item

THUNDERBOLT 3: The CJ791 features 2 Thunderbolt 3 ports to connect compatible Macs and PCs; Thunderbolt 3 transmits video and data at speeds of up to 40Gbps — 8x faster than USB 3.0 — and simultaneously charges devices (up to 85W) over a single cable
MULTIPLE INPUTS: With 2 Thunderbolt 3 ports and DP, HDMI and USB inputs, the CJ791 provides many connection options for PCs, consoles and external devices; Built-in 7W stereo speakers offer enhanced entertainment when viewing videos and playing games
34" ULTRA WIDE SCREEN: Ultrawide curved display with 21:9 aspect ratio provides all the workspace you need to multitask efficiently and in comfort; Forget about inconvenient dual monitor set ups and experience truly seamless multitasking
CURVED FOR COMFORT: The curved screen is engineered to follow the natural curve of your eyes for a more immersive and comfortable viewing experience
PBP AND PIP: Picture-by-Picture (PBP) lets you display to 2 sources onscreen at their native resolution; Optimize your multitasking further with Picture-in-Picture (PIP) and resize the 2nd source to up to 25% of the screen and position it anywhere
QUANTUM DOT COLOR: Supporting up to 125% sRGB color space, Quantum Dot technology delivers colors that are brighter, crisper, and more natural — especially reds and greens; Every monitor is factory-calibrated to ensure accurate, life-like images
3000:1 CONTRAST RATIO: Samsung’s VA panel technology provides a 3000:1 contrast ratio that delivers deep blacks, brilliant whites, and rich colors for clear, vibrant images

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4 sustainability features
Sustainability features
This product has sustainability features recognized by trusted certifications.
Safer chemicals
Made with chemicals safer for human health and the environment.
As certified by
TCO Certified
TCO Certified
TCO Certified IT and technology products are certified based on lower environmental and climate impact, safer chemicals and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labour, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organisations conduct the product testing and supply chain assessments against these criteria.
Worker well-being
Manufactured on farms or in facilities that protect the rights and/or health of workers.
As certified by
TCO Certified
TCO Certified
TCO Certified IT and technology products are certified based on lower environmental and climate impact, safer chemicals and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labour, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organisations conduct the product testing and supply chain assessments against these criteria.
Manufacturing practices
Manufactured using processes that reduce the risk of negative environmental impact.
As certified by
TCO Certified
TCO Certified
TCO Certified IT and technology products are certified based on lower environmental and climate impact, safer chemicals and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labour, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organisations conduct the product testing and supply chain assessments against these criteria.
Energy efficiency
Conserves energy compared to similar products.
As certified by
TCO Certified
TCO Certified
TCO Certified IT and technology products are certified based on lower environmental and climate impact, safer chemicals and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labour, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organisations conduct the product testing and supply chain assessments against these criteria.
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4 sustainability features
Sustainability features
This product has sustainability features recognized by trusted certifications.
Safer chemicals
Made with chemicals safer for human health and the environment.
As certified by
TCO Certified
TCO Certified
TCO Certified IT and technology products are certified based on lower environmental and climate impact, safer chemicals and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labour, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organisations conduct the product testing and supply chain assessments against these criteria.
Worker well-being
Manufactured on farms or in facilities that protect the rights and/or health of workers.
As certified by
TCO Certified
TCO Certified
TCO Certified IT and technology products are certified based on lower environmental and climate impact, safer chemicals and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labour, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organisations conduct the product testing and supply chain assessments against these criteria.
Energy efficiency
Conserves energy compared to similar products.
As certified by
TCO Certified
TCO Certified
TCO Certified IT and technology products are certified based on lower environmental and climate impact, safer chemicals and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labour, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organisations conduct the product testing and supply chain assessments against these criteria.
Manufacturing practices
Manufactured using processes that reduce the risk of negative environmental impact.
As certified by
TCO Certified
TCO Certified
TCO Certified IT and technology products are certified based on lower environmental and climate impact, safer chemicals and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labour, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organisations conduct the product testing and supply chain assessments against these criteria.
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Product Description

With the Samsung 34-Inch CJ791 Ultrawide Curved Gaming Monitor (LC34J791WTNXZA)—the first curved monitor with Intel Thunderbolt 3 for single-source power and charging—you’ll be able to immerse yourself in your game or your work—and get more done while you’re at it. TBT3 offers 40 Gbps processing speed with one cable to link and dock monitor and laptop. Connect docks, displays and peripherals including Macs, USB Type-C laptops, external storage drives and external graphics cards. This Samsung curved monitor offers multiple inputs for all of your devices, including two Thunderbolt 3 ports, DP, HDMI and USB inputs. Built-in 7-watt stereo speakers provide an enhanced entertainment experience when viewing videos and playing games, saving space on your desk without adding extra speakers. The widescreen monitor allows for 34 inches of ultrawide display. Take advantage of seamless multitasking on one screen—no need for a dual-monitor setup. Picture-by-Picture allows you to display two sources of data on the 34-inch widescreen display without degrading the source resolution. Picture-in-Picture helps you to resize one of the sources up to 25% of the screen and position it anywhere.

From the manufacturer

Thunderbolt 3

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.

Multiple Inputs

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

Includes the a headphone jack, two USB 2.0, DC24V, HDMI, DP, and two Thuderbolt 3 ports.

21:9 3440 x 1440 Ultra WQHD vs. 16:9 2560 x 1440 WQHD comparison

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.

Top-down view of the monitor, to show the curve

Curved for Comfort

The curved screen is engineered to follow the natural curve of your eyes for a more immersive and comfortable viewing experience.

Samsung CJ79 Monitor displaying two source with Picture-by-Picture onscreen multi-tasking

PBP and PIP

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

Conventional Monitor display vs Quantum Dot Display of Samsung CJ79 Monitor

Quantum Dot Color

Supporting up to 125% sRGB color space, Quantum Dot technology delivers colors that are bright, crisp, and natural — especially reds and greens. 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 deep blacks, brilliant whites, and rich colors for clear, vibrant images.

AMD FreeSync

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

Comparison of a monitor with 60 hz refresh rate vs Samsung CJ79 Curved Monitor's 100 hz

Fast 100 Hz Refresh Rate

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

The CJ79’s curved screen and three-sided bezel-free design, along with its glossy-white rear panel that neatly conceals cables, creates a slim and striking profile that is the perfect complement to any Thunderbolt 3 Mac or PC.

From the brand

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Product guides and documents

User Manual (PDF)

Product information

Display

Aspect Ratio	21:9
Screen Finish	Curved
Contrast Ratio	3000:1
Refresh Rate	100 hertz
Display Type	QLED
Display Technology	QLED
Viewing Angle	178 degrees
Brightness	300
Pixel Pitch	0.23
Color Gamut	0.13
Picture Quality Enhancement Technology	QLED

Measurements

Screen Size	34 inches
Item Dimensions D x W x H	20.3"D x 31.83"W x 12.2"H
Item Weight	16.8 pounds
Cable Length	6 feet

Display Resolution

Resolution	QHD Ultra Wide 1440p
Display Resolution Maximum	3440 x 1440 pixels
Native Resolution	3440x1440

Power

Power Consumption	180 watts
Voltage	100240 volts

Connectivity

Connectivity Technology	USB
Hardware Connectivity	Thunderbolt, USB, USB 3.0, USB Type C

Display Features

Adaptive Sync	FreeSync

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Additional details

Additional Features	Curved, USB Hub, Wide screen
Specific Uses For Product	personal
Color	White
Mounting Type	Wall Mount
Compatible Devices	Desktop, Gaming Console, Laptop
Warranty Type	1 Year Manufacturer Warranty
Shape	Rectangular

Item details

Performance

Response Time	4 milliseconds

Ports

Total Number of HDMI Ports	1
Total Usb Ports	2
Total Thunderbolt Ports	2
Number of Component Outputs	2
Total USB 2.0 Ports	2
Total USB 3.0 Ports	2

Safety and product resources

Safety documents

User Manual (PDF)

What's in the box

Monitor,HDMI Cable, Thunderbolt cable

Top Brand: Samsung

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Brand	Samsung
Model Number	FBASAMLC34J791WTNXZA
Model Name	FBASAMLC34J791WTNXZA
Warranty Description	1 year
Series Number	79
UPC	887276261430
Manufacturer	Samsung Electronics DAV
Global Trade Identification Number	00887276261430
Included Components	Monitor,HDMI Cable, Thunderbolt cable
Item Type Name	Samsung LC34J791WTNXZA Thunderbolt
Best Sellers Rank	#355,568 in Electronics (See Top 100 in Electronics) #7,335 in Computer Monitors
ASIN	B07CS3JB5K
Customer Reviews	(2,026) 4.4 out of 5 stars

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SAMSUNG 34” ViewFinity CJ79 Series Ultrawide QHD (3440x1440) Computer Monitor, 100Hz, Thunderbolt 3 Daisy Chain, QLED, HDMI, USB Hub, Height Adjustable Stand, LC34J791WTNXZA, White

About this item

Product voltage: 100

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Product Description