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Samsung 34-Inch CJ791 Ultrawide Curved Gaming Monitor (LC34J791WTNXZA) - 100Hz Refresh, QLED Computer Monitor, 3440 x 1440p Resolution, 4ms Response, Stereo Speakers, White

4.4 out of 5 stars 323 ratings
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List Price: $899.99
Price: $699.99 & FREE Shipping. Details & FREE Returns
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You Save: $200.00 (22%)
Display Size 34 Inches
Brand Samsung Electronics
Resolution QHD Ultra Wide 1440p
Hardware Interface USB, USB Type C, USB 3.0, Thunderbolt
Display Technology LCD

About this item

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  • 34-INCH 21:9 ULTRAWIDE CURVED MONITOR with QLED technology for vibrant color and fine detail
  • MONITOR FOR MACBOOK PRO supports Thunderbolt 3 which offers 40 Gbps processing speed—8x faster than USB 3.0 —and up to 85W laptop charging thru single cable
  • CURVED GAMING MONITOR with 100Hz refresh rate, AMD FreeSync and multiple game modes
  • ADVANCED QUANTUM DOT COLOR and VA panel supports up to 125% sRGB color space and darker blacks
  • EASIER ON EYES due to ergonomic curved screen and low blue light emissions
  • 100 hertz

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  • Samsung 34-Inch CJ791 Ultrawide Curved Gaming Monitor (LC34J791WTNXZA) - 100Hz Refresh, QLED Computer Monitor, 3440 x 1440p Resolution, 4ms Response, Stereo Speakers, White
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  • Apple Thunderbolt 3 (USB-C) Cable (0.8m)
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Total price: $857.99
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From the manufacturer

Back of the 34" ThunderboltTM 3 Curved Monitor features two Thunderbolt 3 ports

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.

Side-by-side comparison of a conventional 1000:1 vs Samsung CJ79 3000:1 contrast ratio

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.

Samsung CJ79 Monitor featuring AMD FreeSync for Smoother Gameplay

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.

Three-sided bezel-free design

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.


Compare with similar items


Samsung 34-Inch CJ791 Ultrawide Curved Gaming Monitor (LC34J791WTNXZA) - 100Hz Refresh, QLED Computer Monitor, 3440 x 1440p Resolution, 4ms Response, Stereo Speakers, White
LG 34WN80C-B 34 inch 21:9 Curved UltraWide WQHD IPS Monitor with USB Type-C Connectivity sRGB 99% Color Gamut and HDR10 Compatibility, Black (2019)
Sceptre 35 Inch Curved UltraWide 21: 9 LED Creative Monitor QHD 3440x1440 Frameless AMD Freesync HDMI DisplayPort Up to 100Hz, Machine Black 2020 (C355W-3440UN)
Samsung Business CH890 Series 34 inch WQHD 3440x1440 Ultrawide Curved Desktop Monitor for Business, 100 Hz, USB-C, HDMI, DP, 3 Year Warranty (LC34H890WGNXGO), Black/Titanium
Sceptre 30-inch Curved Gaming Monitor 21:9 2560x1080 Ultra Wide Ultra Slim HDMI DisplayPort up to 200Hz Build-in Speakers, Metal Black (C305B-200UN)
Customer Rating 4.4 out of 5 stars (323) 4.6 out of 5 stars (964) 4.5 out of 5 stars (538) 4.3 out of 5 stars (170) 4.5 out of 5 stars (2604)
Price $699.99 $536.93 $379.97 $629.99 $278.99
Shipping FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details
Sold By Amazon.com Amazon.com Amazon.com Amazon.com Amazon.com
Aspect Ratio 16:9 21:9 21:9 21:9 21:9
Display Resolution Maximum 3440x1440 pixels 3440 x 1440 pixels 3440 x 1440 pixels 3440 x 1440 pixels 2560 x 1080 pixels
Screen Size 34 inches 34 inches 35 inches 34 inches 30 inches
Display Type LED LED LED LED LED
Item Dimensions 31.83 x 20.30 x 12.20 inches 32.70 x 9.90 x 16.90 inches 32.96 x 19.04 x 9.68 inches 31.90 x 11.80 x 21.20 inches 27.80 x 16.10 x 7.40 inches
Item Weight 22.04 lbs 23.37 lbs 16.60 lbs 17.40 lbs 12.15 lbs
Refresh Rate 100 hertz 60 hertz 100 hertz 100 hertz 200 hertz
Size 34-Inch WQHD & USB C with 60W Power Delivery 34-Inch

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.Temperature : 10~40 ℃


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Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
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