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  5. Jlink 34-Inch WQHD Curved Ultrawide Monitor Review

Jlink 34-Inch WQHD Curved Ultrawide Monitor Review

2025 12/23
Gadget Monitor Gaming monitor
Review
Oct 15, 2026
Mr. Gadget
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What kind of monitor do you use when playing games or working?

The “Jlink D34QR4K” reviewed here features a high WQHD resolution, a 144Hz high refresh rate, and an ultra-wide curved display. This makes it a monitor we can highly recommend not only for general work, but also for those who need a large amount of information at once—such as in FPS games—or those playing games where victory or defeat is decided in a fraction of a second!

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Jlink ‎D34QR4K
Jlink ‎D34QR4K
Brand: JlinkAmazon best-seller #7,090
AmazonSearch on AliExpress

Written by “Mr. Gadget”

  • Studied under Masatoshi Ono, a million-selling singer with experience performing at Kohaku Uta Gassen
  • Over 2,400 followers on X (Twitter)
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Click here for a detailed profile

I look forward to sharing my reviews with you!

Products and other support were provided by Jlink for the creation of this article. (Honorifics omitted)
In accordance with our content production policy, we strive to provide fair and unbiased reviews.

Jlink ‎D34QR4K
『Jlink ‎D34QR4K』
Overall Rating
( 4.5 )
Pros
  • 曲面ウルトラワイドディスプレイ
  • WQHDの鮮明なディスプレイ
  • HDR対応
  • 144Hzと高いリフレッシュレート
  • 21:9とワイドなアスペクト比
  • 狭いベゼル
  • 一通り揃っているインターフェース
Cons
  • 電源アダプターがでかい
  • 取扱説明書が大雑把
TOC
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Basic Information

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What kind of manufacturer is Jlink?

Jlink is a monitor manufacturer headquartered in Guangdong, China.

They primarily develop and sell high-performance, low-priced gaming monitors, and have expanded into overseas markets such as Japan and the United States.
They offer monitors with distinctive designs such as curved and ultra-wide form factors, along with exceptional performance features like high resolution and a high refresh rate, creating a comfortable environment that allows users to focus on gaming and work.

詳しくはこちらから
Interview with the Manufacturer: What is Jlink? Origin and Brand Overview Explained Many of you may have felt uneasy when considering purchasing from the monitor brand Jlink on Amazon or elsewhere, unsure of what kind of brand it actually is. This time, we conducted an interview with Jlink to clarify what kind of brand Jlink is and which country it originates from.
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Specs

 Display Size 34 inches
 Panel VA, curved, anti-glare
 Aspect Ratio 21:9
 Resolution 3440×1440 (WQHD)
 HDR Supported
 Refresh Rate 144 Hz
 Viewing Angle 178 degrees
 Brightness400 cd/m² 
 Contrast Ratio 4000:1
 Speakers Built-in
“Jlink D34QR4K” Specifications
 Dimensions 81.2 x 36.7 x 1.5 cm WeightApprox.  11kg
 Interfaces ・HDMI 2.0 x 2
・USB-UP x 1
・USB x 1
・LAN port x 1
・DisplayPort (DP1.4) x 1
・3.5mm audio jack x 1
・Type-C port x 1
・Power port
 Adjustment Range ・Left/Right: 20°
・Up/Down: 90mm (±5mm)
・Tilt: -5° to 20°
“Jlink D34QR4K” Specifications
Features
  • Curved Ultra-Wide Display
  • 3440 x 1440P Resolution
  • HDR Support
  • High 144Hz Refresh Rate
  • 21:9 Aspect Ratio
  • Beautiful Black VA Panel

Included Items

"Jlink D34QR4K"
"Jlink D34QR4K" Included Items
“Jlink D34QR4K” Included Items
"Jlink D34QR4K" Stand
  • Monitor Body
  • Monitor Stand
  • Base
  • DP Cable
  • Power Cord
  • Power Adapter
  • 3 Screws
PR
Jlink ‎D34QR4K
Jlink ‎D34QR4K
Brand: JlinkAmazon best-seller #7,090
AmazonSearch on AliExpress

Review

The power adapter is huge

The of
The power adapter takes up an unnecessary amount of space
Mr. Gadget

To be frank, the power adapter is large and gets in the way.

Installation is easy.However, we would like more detailed instructions in the user manual.

Before attaching the base and stand of the "Jlink D34QR4K"
Just place the base and stand together and tighten with screws
When attaching the stand and screws of the "Jlink D34QR4K"
Secure with the three included screws
Mounting section on the main unit side of the "Jlink D34QR4K"
Main unit and stand attachment part (main unit side)
Align the tabs and holes securely when connecting
After attaching the base and stand of the "Jlink D34QR4K"
Fits perfectly
Stand and main unit attachment part of the "Jlink D34QR4K"
Main unit and stand attachment part (stand side)
Cautions and other notices on the main unit side of the "Jlink D34QR4K"
Cautions and other information displayed on the main unit
Mr. Gadget

Attaching the base and stand was easy, but personally, I struggled a bit with attaching the stand to the main unit…

By the way, the user manual does not provide detailed instructions on how to install it.
While this might be fine for those who are used to assembling monitors, caution is needed for those who are not.

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The Interfaces Are Reasonably Well-Equipped

Interfaces of the
Interfaces of the

As mentioned when introducing the specifications, the detailed interfaces are as follows.

Interfaces
  • HDMI 2.0 × 2
  • USB-UP × 1
  • USB × 1
  • LAN port × 1
  • DisplayPort (DP1.4) × 1
  • 3.5mm audio jack × 1
  • Type-C port × 1
  • Power port
Overall view of the interface section of the 'Jlink D34QR4K'
Overall view of the interface section
Mr. Gadget

Pretty much all the commonly used ports are included!

Range of Motion

Adjustable Range
  • Left/Right: 20°
  • Up/Down: 90 mm (±5 mm)
  • Tilt: -5° to 20°

You can adjust the monitor angle as shown in the photos below.

'Jlink D34QR4K'
'Jlink D34QR4K'

The monitor height can also be adjusted in the same way.

'Jlink D34QR4K'
PR
Jlink ‎D34QR4K
Jlink ‎D34QR4K
Brand: JlinkAmazon best-seller #7,090
AmazonSearch on AliExpress

A gaming-inspired rear panel

When the Jlink D34QR4K is powered on
The light on the bottom right lights up when the power is turned on
Jlink D34QR4K
The rear panel also lights up when the power is on
Jlink D34QR4K
When the Jlink D34QR4K is powered off
The same applies when turning it off
Jlink D34QR4K
Gradually transitions through various colors
Jlink D34QR4K
Mr. Gadget

Though since it’s on the back, you can’t see it at all (laughs).

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Monitor settings are cumbersome

Monitor settings and power on/off are controlled using this function button located on the back of the monitor.

Rear function button of the Jlink D34QR4K
Function button

Pressing this function button once brings up the monitor settings menu.
Additionally, as shown in the image below, pressing it to the left is assigned to BACK, and pressing it to the right is assigned to ENTER.

"Jlink D34QR4K"
You can adjust brightness, contrast, and more.
"Jlink D34QR4K"
Having gaming settings is what you’d expect.
"Jlink D34QR4K"
"Jlink D34QR4K"
Please check these photos for other configurable items.
"Jlink D34QR4K"
It also supports HDR.
"Jlink D34QR4K"
"Jlink D34QR4K"
You can also display an fps counter by configuring game assists.
Mr. Gadget

It was kind of a pain having to reach around to the back of the monitor every time I wanted to change a setting.

Mediocre Speaker Sound Quality

"Jlink D34QR4K"

There are two speakers built into the bottom of the monitor and one on the upper rear.

While there’s nothing particularly frustrating about them for normal use, if you ask whether the sound quality is good, it isn’t.
I doubt anyone is expecting high sound quality from this monitor, but personally, I think you’re better off buying external speakers.

PR
Jlink ‎D34QR4K
Jlink ‎D34QR4K
Brand: JlinkAmazon best-seller #7,090
AmazonSearch on AliExpress

A Display Capable of Vivid Rendering

"Jlink D34QR4K"
No awkwardness or unnaturalness in the colors
"Jlink D34QR4K"
True to its WQHD resolution, it displays images in fine, beautiful detail
Mr. Gadget

It’s quite hard to convey fully even through photos, but just for reference…
It renders images so beautifully that I had zero complaints regarding resolution or color reproduction!

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Curved Ultrawide Displays Are Amazing

First of all, at 34 inches it is tremendously wide, allowing you to work with a two-screen or three-screen layout.

"Jlink D34QR4K" displaying three screens
Mr. Gadget

I was able to work across multiple windows without feeling any awkwardness!

Also, because it’s a curved display, your field of view expands and the strain of shifting your gaze is reduced!

"Jlink D34QR4K"
"Jlink D34QR4K"
"Jlink D34QR4K"

The bezels are also narrow, making it easier to focus on gaming and work.

Mr. Gadget

Having narrow bezels is surprisingly an important aspect.
Since the amount of information that can be displayed at once varies depending on the bezel size, I think it’s a huge advantage for people who play FPS games!

PR
Jlink ‎D34QR4K
Jlink ‎D34QR4K
Brand: JlinkAmazon best-seller #7,090
AmazonSearch on AliExpress

High refresh rate: 144Hz!

As we mentioned when introducing the specifications, the “Jlink D34QR4K” supports 144Hz.

Mr. Gadget

We were amazed by the smooth visuals!
Also, a high refresh rate is indispensable for split-second gaming, making 144Hz a welcome feature!

Conclusion

High overall perfection!

After using the “Jlink D34QR4K” this time, we felt that it doesn’t have any major weaknesses.
It has both high resolution and a high refresh rate, and even includes built-in speakers.
Additionally, the interface is well-equipped.

And above all, the curved ultrawide display is the defining feature of this monitor.
With few drawbacks and many advantages, we think this is a monitor we can recommend to anyone!

However, these advantages are best utilized when playing games like FPS titles, so it is especially recommended for those who play such games!

Jlink ‎D34QR4K
『Jlink ‎D34QR4K』
Overall Rating
( 4.5 )
Pros
  • 曲面ウルトラワイドディスプレイ
  • WQHDの鮮明なディスプレイ
  • HDR対応
  • 144Hzと高いリフレッシュレート
  • 21:9とワイドなアスペクト比
  • 狭いベゼル
  • 一通り揃っているインターフェース
Cons
  • 電源アダプターがでかい
  • 取扱説明書が大雑把

Recommended For

  • Those looking for a curved or wide monitor with few drawbacks
  • Those who play FPS games and similar titles
  • Those who want a curved wide monitor with high resolution and a high refresh rate
PR
Jlink ‎D34QR4K
Jlink ‎D34QR4K
Brand: JlinkAmazon best-seller #7,090
AmazonSearch on AliExpress

Thank you very much for reading to the end!

  • Product prices and information are current as of the time of writing.
  • Please note that this site assumes no responsibility whatsoever for any errors in this information.
  • Product and service names mentioned on this site are trademarks of their respective companies.

This article was originally written in Japanese and has been translated.

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