SAMSUNG 34” ViewFinity CJ79 Series Ultrawide QHD (3440x1440) Computer Monitor, 100Hz, Thunderbolt 3 Daisy Chain, QLED, HDMI, USB Hub, Height Adjustable Stand, LC34J791WTNXZA, White
Condition: Used - Like New
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Availability:
Only 1 left in stock, order soon!
Arrives
Jul 3 – Jul 7
Recently Viewed
Color: White
Size: 34-in Curved
Style: 21:09
Pattern: Single
Features
- 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: Samsungs 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 CJ791 to minimize image tearing and stutter; The smoother transition between image frames provides seamless gameplay and video playback for uninterrupted viewing
- 100 hertz
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.
Brand: Samsung
Screen Size: 34 Inches
Resolution: QHD Ultra Wide 1440p
Aspect Ratio: 219
Screen Surface Description: Curved
Standing screen display size: 34 Inches
Screen Resolution: 3440x1440
Max Screen Resolution: 3440 x 1440 Pixels
Number of USB 2.0 Ports: 2
Number of USB 3.0 Ports: 2
Brand: Samsung
Series: FBASAMLC34J791WTNXZA
Item model number: FBASAMLC34J791WTNXZA
Item Weight: 16.8 pounds
Product Dimensions: 20.3 x 31.83 x 12.2 inches
Item Dimensions LxWxH: 20.3 x 31.83 x 12.2 inches
Color: White
Power Source: AC
Voltage: 100240 Volts
Manufacturer: Samsung Electronics DAV
Is Discontinued By Manufacturer: No
Date First Available: April 27, 2018
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 3 – Jul 7
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Color: Black
Size: 34- in Flat
Style: 21:09
Pattern: DP + HDMI only
Been using this monitor for a while and the screen quality and response time of the VA pixels are much better than you’d think for a monitor at this price. The 100hz refresh rate actually looks like 100hz, and on a VA panel, this is impressive. It handles all my open windows well too as I hoped for, so that’s great. I do love how an ultrawide monitor adds a TON of emersion when playing games and watching content. First thing I did when I powered on the monitor on my PC was load up the second season of The Rings of Power, which felt somewhat small on my 16:9 32” 4k monitor that I have, but only because it is recorded as an ultra-wide, so when on this monitor it filled it corner to corner, giving me a FULL-screen ultra-wide 34”. Watching ultra wide content on this thing makes it feel actually a bigger image than on a standard 16:9 43” display to be honest, or at least the same. And when playing video games, the extra FOV is pretty nice for the emersion. The monitor does show the regular drawbacks of a VA panel though, especially with penning over darker colors on a bright background, or visa-versa, you do still get the smear-y look, but as a VA panel that it is, the monitor really makes up for it with the 100hz refresh rate and a good response time (with FreeSync support — dunno about G-Sync though I haven’t tried) to mitigate this. The colors are nothing to write home about, and the display lacks HDR, however, they are 10-bit and is seamlessly recognized by windows. So, that’s strange, it must be an 8-bit+FRC then, regardless, if you set the gamma, color, contrast/brightness settings right, it really does look like an HDR panel minus the brightness levels of course. But, in regular use, it does get very very bright still on the desk, I haven’t ever used it past 50-60% brightness, normally having it at around 30% or so with no issues seeing anything. The stand it comes with is a bit cumbersome (albeit not as bad as a lot of other monitor stands), so I would recommend putting it on a monitor arm though. Don’t bother getting a monitor with a higher refresh rate. 100hz at 1440p ultrawide (4k length x 1440p width), you are effectively pushing nearly the same amount of pixels as a 4k monitor, and you won’t ever get, let’s be real here, more than 100fps in almost all your games at 4k (I am using an AMD RX 6800XT), so the 100hz is more than sufficient for this. You’d benefit from a higher refresh rate for just general tasks around windows, but for games and content it is plenty. Oh, and when viewing 16:9 content or other aspect ratios, it’s still pretty good, it’ll just have the same resolution as a non-wide screen 27” monitor with black bars on the sides. But that brings me to my last couple points, the monitor recognizing different resolutions is automatic and scales very nicely, which I haven’t had good luck with with other monitors in this price range. For example, plugging in my nintendo switch, and the display automatically scales for 1080p, which is pretty convenient (just make sure you turn off FreeSync for that…yeah that’s really dumb). Then you also have the PiP mode, which is great if you want a couple different sources you want to reference at the same time on the same screen. Would’ve been nice though to be able to set the sources side by side or something and have it properly adjust the aspect ratio…the PiP is a bit janky to be frank, albeit still works well, just keep that in mind.
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Reviewed in the United States on December 27, 2024 by Matt
Color: White
Size: 34-in Curved
Style: 21:9 + Built in Speakers
Pattern: + Thunderbolt 4
I spent weeks looking into different monitors for my Mac Book pro for work and my Mac Book Air for school. I actually bought a different Samsung option originally that was more square, and it didn’t have the best picture. After even more research I figured out that for most Mac’s, it’s best to have a wider screen, especially one this size. The amount of pixels in a Mac screen is a lot more than the other brands of laptops, so in human terms, it needs more space to look good. I am so happy with this monitor! And ended up buying a second one! It easily adjusts to the angles I need it in any a given day. The color is bright and full. Looks amazing when watching my Apple TV shows. I’m able to have multiple windows pulled up at once, as well as all the widgets I’ve filled the screen with. I’ve yet to test out a high performance video game but everything else works great. There’s plenty of screen filter options that would allow for a better looking game no matter what you are playing. I saw some people complaining about the speakers, but I don’t buy a monitor for the speakers, and I don’t have any issue with them when I’m not connected to Bluetooth. Sturdy on the stand, and even better on the dual monitor mount I bought.
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Reviewed in the United States on May 25, 2025 by JR Smalls JR Smalls
Color: Black
Size: 34- in Flat
Style: 21:09
Pattern: DP + HDMI only
I love this wide screen monitor. I bought it for working at home and it helps to make my workday so much more efficient. It is definitely nicer than using 2 separate screens.
Reviewed in the United States on June 9, 2025 by Amazon Customer
Color: Black
Size: 34- in Flat
Style: 21:09
Pattern: DP + HDMI only
First off, I'll say that I got this here for about twenty percent off retail, and for that I would consider it a very good value. This monitor is replacing a 27" 4k LG monitor that I gave to my daughter to use with her Macbook. The two computers that are sharing this Samsung are a file and security camera server, and a desktop computer that sees infrequent use. I wanted to replace the LG with another 27" 4k; but I've always been a little "ultrawidescreen-curious" so I jumped at the opportunity to pick up this Samsung when I saw the sale price. Most monitors at this pricepoint feel very "disposable", and considering how light this monitor is (even when it was still in the shipping box) I don't think this is any exception. The included stand does not seem particularly sturdy. With that said, it easily bolted up to my heavy duty VESA monitor stand. (I had to use my own screws though, which thankfully, I had some spares.) Kudos to Samsung for including one each of an HDMI cable and a Displayport cable. Picture quality is solid for this pricepoint. I would not use it for gaming or even my daily work (equal time spent coding and visual design), but it is more than adequate for general/casual home use. One glaring negative for me is the lack of any sort of internal speaker, although it does have a single 1/8" audio out jack for connecting to headphones or external speakers. Since I depend on audio alerts when my security system software is triggered, I'll need to hook up some speakers. Monitor settings are controlled via a single small multifunction panel, about 1" square, at the bottom center of the monitor. Much to my surprise, it works reasonably well. (I favor monitors like my BenQ that have a remote control to change source inputs and access the menu; but I realize such a feature would not be feasible at this pricepoint.) So, let's talk about why you would want ultra widescreen. It has a 21:9 aspect ratio, so it is more than twice as wide as it is tall. It's not great for movies, because they tend to be shot at 16:9, so you will have black bars on the left/right sides. It's not great for general web browsing, because most websites are designed for narrower viewports -- rightly so, because reading extremely long lines of text is visually fatiguing (I'm a web developer) -- so you have a LOT of empty space on the left and right sides of the screen. In many ways, despite being nominally "larger" than my main work monitor (34" vs 27"), it feels visually cramped because I have less vertical resolution available. So what would ultra widescreen be good for? - If you are working with wide spreadsheets that have many columns, you will definitely benefit from the extra horizontal space. - If you play panoramic, immersive games, you might like the expanded horizontal view. (But I would reiterate that a monitor at this pricepoint is probably not great for gaming.) - You are a coder and want to see long lines of code fit on one line. (But, coder-to-coder, I would argue that shorter, more readable lines of code is ideal.) - You are a designer that can benefit from the much wider view, e.g. 2-page layouts. (But again, as a designer myself, I would still favor a 16:9 monitor.) If any of the above apply to you, you might like ultra widescreen. For all other uses, I would probably stick with a conventional 16:9 monitor. [By the way, the 21:9 nature of this monitor does not impact my product rating for this monitor, since it is an intrinsic aspect of the design. I just want to make the above points in case you are new to this monitor format.] Oh! Almost forgot. Once nice little surprise (to me at least) with this monitor is the Picture-in-Picture (PIP) / Picture-by-Picture (PBP) feature! It allows you to display the screens from two of the inputs simultaneously! I can do a little web browsing on one side of my screen, while monitoring my security system cameras on the other side. However, keep in mind that the monitor's audio output can be only assigned to one of the inputs at a time; you cannot have it coming from 2 or 3 inputs simultaneously.
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Reviewed in the United States on October 1, 2023 by DW