---
product_id: 1214361
title: "ASUS PQ321Q 31.5-Inch 4K UHD 16:9 LED LCD Monitor (Black)"
brand: "asus"
price: "$673.22"
currency: USD
in_stock: false
reviews_count: 3
url: https://www.desertcart.us/products/1214361-asus-pq321q-31-5-inch-4k-uhd-16-9-led
store_origin: US
region: United States of America
---

# 31.5" 4K UHD Tilt/Swivel/Pivot Dual HDMI + DP ASUS PQ321Q 31.5-Inch 4K UHD 16:9 LED LCD Monitor (Black)

**Brand:** asus
**Price:** $673.22
**Availability:** ❌ Out of Stock

## Summary

> Elevate Your Workspace! 🚀

## Quick Answers

- **What is this?** ASUS PQ321Q 31.5-Inch 4K UHD 16:9 LED LCD Monitor (Black) by asus
- **How much does it cost?** $673.22 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/1214361-asus-pq321q-31-5-inch-4k-uhd-16-9-led)

## Best For

- asus enthusiasts

## Why This Product

- Trusted asus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Peace of Mind:** Enjoy 3 years of warranty with ASUS Rapid Replacement.
- • **Sleek & Stylish:** The thinnest 4K monitor, perfect for modern workspaces.
- • **Unmatched Clarity:** Experience stunning visuals with 3840 x 2160 resolution.
- • **Ergonomic Excellence:** Adjust your view with tilt, swivel, pivot, and height options.
- • **Versatile Connectivity:** Dual HDMI and DisplayPort for seamless multitasking.

## Overview

The ASUS PQ321Q is a cutting-edge 31.5-inch 4K UHD monitor that delivers exceptional image quality with a resolution of 3840 x 2160. Its ergonomic design allows for multiple adjustments, ensuring a comfortable viewing experience. With versatile connectivity options and a sleek profile, this monitor is perfect for professionals seeking both style and functionality.

## Description

Product Description          The 31.5-Inch ASUS PQ321Q True 4K UHD Monitor provides stunning visuals with an ultra-high definition 3840 x 2160 resolution-four times the detail of Full HD. With over 8 million pixels, experience larger screen real estate and clarity you have to see to believe.             .com          An Experience Only 4K can Deliver. The 31.5-inch ASUS PQ321Q True 4K UHD Monitor provides stunning visuals with an ultra-high definition 3840 x 2160 resolution—four times the detail of Full HD. With over 8 million pixels, experience larger screen real estate and another level of clarity in your movies, videos, and games you have to see to believe.FeaturesOver 8 million pixelsBy doubling the number of horizontal and vertical pixels, the PQ321Q True 4K UHD monitor gives you every bit of detail, far surpassing that of a Full HD monitor. With four times the resolution of Full HD and over 8 million pixels, experience larger screen real estate and clarity you have to see to believe.10-bit color for smoother gradationsThe ASUS PQ321Q True 4K UHD monitor is a 10-bit RGB panels that delivers more natural transitions between different hues and offers a more flawless image than ever before.Premium IGZO DisplayThe ASUS PQ321Q True 4K UHD Monitor is built with an anti-glare Indium Gallium Zinc Oxide (IGZO) panel rather than traditional amorphous silicon. The IGZO panel supports much smaller transistors than amorphous silicon, which allows for much smaller pixels and much better detail. Couple with an ultra-wide 176-degree viewing angles on both vertical and horizontal planes, get a pristine image from virtually any angle. What’s more, the IGZO panel supports increased pixel transparency and reduced current leakage for increased energy savings.Extensive ConnectivityThe ASUS PQ321Q True 4K UHD Monitor features DisplayPort and dual-HDMI ports inputs to connect to your various devices and PCs simultaneously. Built-in 2W stereo speakers simplify frees space from needing separate speakers for a complete audio visual experience.Picture-by-picture (PIP) mode splits the screen down the middle to display content from two separate sources side-by-side to view images from different signals and easily switch between the main and PIP source, including audio.Slim Profile with Ergonomic DesignThe thinnest 4K monitor available, the ASUS PQ321Q True 4K UHD monitor measure only 35mm at its thickest point, showcasing a modern design fit for anywhere in the home or office.Pixel-perfect CoverageThe PQ321Q comes with a 3 year global warranty as well as aZero Bright Dot guarantee that ensures full replacement if there’s so much as 1 bright dot pixel. Plus, ASUS Rapid Replacement provides fast and free replacement in no time at all*.What's in the Box PQ321Q True 4K UHD MonitorAC adapterPower cableDispayPort 1.2 cableRS-232C conversion cableWarranty Card  SpecificationsDisplay Size: 31.5 inches 16:9 Display Type: IGZO LED backlit Display Colors:  1.07 billion (10-bit RGB) True Resolution:  3840 x 2160 Pixel Pitch: 0.182 mm (140ppi) Viewing Angles:  176-degrees (H) / 176-degrees (V) Brightness:  350 cd/m2   Response Time: 8ms (Gray to Gray) Color Temperature: 18 levels Gamma Adjustment: 5 modes Inputs/ Outputs:1 x DisplayPort2 x HDMI 1.41 x RS-232C1 x 3.5mm audio-in1 x 3.5mm audio-outMechanical Design:Tilt (+25° ~5°)Swivel (+45°~ -5°)Height adjustment (0~ 150mm)VESA wall-mountable (200 x 200mm)Size: 750 x 489 x 256mm / 29.5 x 19.3 x 10.1-inches (with stand) Weight  13kg / 28.7 lbs © 2013 ASUS Computer International. All Rights Reserved. ASUS is a registered trademark of ASUSTeK Computer. All specifications are subject to change without notice and features are only in select models. Products may not be available in all markets. Brand and product names mentioned are trademarks of their respective companies.  * ASUSTeK will provide warranty coverage without charge if the purchased product is proven defective and workmanship under normal use within the warranty period, from the date of purchase from ASUSTeK or its authorized reseller. This limited warranty applies only to the original consumer purchaser and is effective only within three years (for the standard warranty) and 30 day (for the Zero Bright Dot warranty) from date of purchase. ASUS Rapid Replacement covers 2-way free shipping for US and Canada regions only.

## Features

- 31.5-inch 4K display with ultra-high definition (UHD) 3840 x 2160 resolution and 140 pixels per inch (PPI) for impeccable visuals
- Ergonomically-designed stand with Tilt,Swivel,Pivot,Height adjustment plus wall-mount capability for comfortable viewing position
- The thinnest 4K monitor available, the PQ321Q is wall-mountable with full tilt, swivel, and height adjustment
- DisplayPort and dual HDMI ports, Picture-by-Picture function, and built-in dual 2-watt stereo speakers
- ASUS Rapid Replacement: 3 Years Warranty, 2 way free shipping

## Images

![ASUS PQ321Q 31.5-Inch 4K UHD 16:9 LED LCD Monitor (Black) - Image 1](https://m.media-amazon.com/images/I/41-Fwj7vThL.jpg)
![ASUS PQ321Q 31.5-Inch 4K UHD 16:9 LED LCD Monitor (Black) - Image 2](https://m.media-amazon.com/images/I/31lm3j6JNEL.jpg)
![ASUS PQ321Q 31.5-Inch 4K UHD 16:9 LED LCD Monitor (Black) - Image 3](https://m.media-amazon.com/images/I/41CyVsN3LTL.jpg)
![ASUS PQ321Q 31.5-Inch 4K UHD 16:9 LED LCD Monitor (Black) - Image 4](https://m.media-amazon.com/images/I/41f08-s9FgL.jpg)
![ASUS PQ321Q 31.5-Inch 4K UHD 16:9 LED LCD Monitor (Black) - Image 5](https://m.media-amazon.com/images/I/41EGTefXwrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    Works perfectly on 60 Hz on new Mac Pro (Late 2013)
  

*by S***E on Reviewed in the United States 🇺🇸 on July 11, 2014*

I just took the plunge and got the Asus PQ321Q, in large part because Apple has certified that it is capable of 60 hz on the Mac Pro (Late 2013) when using this display. See Apple's support page. People have been repeating this all over the internet.Apple says: "Mac Pro (Late 2013) also support 60 Hz displays using multi-stream transport (MST). These displays need to be manually configured to use MST. Follow the steps below to use the display's built-in controls to enable this feature.ASUS PQ321Q: Choose OSD menu > Setup > DisplayPort StreamYour Mac will automatically detect an MST-enabled display."Well, I got the display and set it up on my nMP with dual D500s. Its connected to my nMP using a display port to minidisplayport cable. [...]As soon as I turn on MST, the screen goes black. I have to turn off MST to get it working. I finally talked to Asus support. The support rep made me wait while he talked to a supervisor, and then he swore that it simply isn't possible.  Here is part of our discussion:Shahid Haque-Hausrath Fri, 7/11/2014 05:07:18 pmCan you tell me what kind of cable I can use to connect a Mac Pro (newest model, only has mini display port) to the monitor, and get 60hz? Because this is absolutely supposed to be possible.Cordell S. Fri, 7/11/2014 05:07:47 pmyou will not be able to get 60hz when using that mac as the output on the mac is mini display port. it would have to be coming from a full display port connection that your mac does not have.and who told you that?Shahid Haque-Hausrath Fri, 7/11/2014 05:08:11 pmApple. [...]I don't get how what Apple says can jive with what you said about mini display port not working. The Mac Pro only has mini display port. I'm trying to research which cable I need to make this work, as many have attested that they have 60hz on the new Mac Pro. I just need to know how -- if the cable is the problem then what do I need to do instead.[Going back and forth.]Shahid Haque-Hausrath Fri, 7/11/2014 05:26:14 pmThen how does it work with the Mac Pro late 2013 model? Or are you saying that Apple is wrong?Cordell S. Fri, 7/11/2014 05:27:18 pmcoming from a mini display port, no it will not be able to get 60hz. and sounds like it to me. you can get 60 hz from this monitor using 2 hdmi cables or a displayport to displayport connectionShahid Haque-Hausrath Fri, 7/11/2014 05:27:55 pmYet, none of those are possible on a new Mac Pro. It has only one HDMI port and mini displayport. And they advertise that its possible.Cordell S. Fri, 7/11/2014 05:28:11 pmno, they are not. apple may, but we do not.we do not state anywhere that you will get 60hz from our monitor using minidisplayport to displayport-----I'm thinking that Asus is wrong that its simply not possible, but perhaps the cable I am using is the problem. I am going to see if this one will work since it is DisplayPort 1.2 compatible. [...]I don't want to go up to 4k at the expense of 60 Hz. That is exactly why I blew so much money on this display, which is supposed to work.  If it won't, I'll return it to Amazon.Also, I do have one stuck pixel.  I am usually super obsessive about stuck pixels, but this time I may not end up needing to replace it.  Its hard to see on a display like this.  On the other hand, it would be better to have one without any stuck pixels.----------------Update 07/14/2014:  Asus tech support was off base.  60hz on the new Mac Pro (late 2013) is possible using a cable that is DisplayPort 1.2 compatible, like this one:  I'm thinking that Asus is wrong that its simply not possible, but perhaps the cable I am using is the problem. I am going to see if this one will work since it is DisplayPort 1.2 compatible. [...]I just got it working.  I also did an exchange with Amazon and got a new display without any dead or stuck pixels at all.  I'm very pleased now.----------------Update 07/23/2014:  As discussed above, I have the display set to MST to get 60 Hz. I was unable to get iTunes to display HDCP content. I was worried that the MST setting does not support HDCP, as I saw on one Amazon review saying: "a word to the wise, if you are wanting to watch a BluRay movie on your computer, you have to set the Displayport stream back to SST where the video player will see that your system supports HDCP."Asus support was very helpful this time. They gave me a firmware update that fixed this issue. For anyone who needs, it, I put it on my Dropbox:  https://dl.dropboxusercontent.com/u/3392062/PQ321_Firm_V1100.zip

### ⭐⭐⭐ 







  
  
    Gorgeous display, but too small to use without scaling.
  

*by S***J on Reviewed in the United States 🇺🇸 on October 22, 2015*

As someone with a multi-monitor setup at work, I like having lots of desktop space. While some people purchase 4K monitors and then depend on scaling to keep things from being too small, my intent was to make use of all 3840x2160 pixels with no scaling whatsoever.First impression is that this monitor is huge! Coming from a 24" monitor, this is a substantial increase in size, but that's a good thing. If you want a smaller monitor, buy a smaller monitor. The shock of the larger size wears off after a while, so don't let that aspect intimidate you.To drive such a high resolution monitor, you're going to need a decent video card. I chose an ASUS STRIX 750ti for its ability to support 3840x2160 via DisplayPort and that it wouldn't run its fans unless the card was stressed (such as when playing games). I want as quiet an environment as possible, and this card served that need. The only thing that I wished it had was an HDMI 2.0 connection for future compatibility with other 4K displays that might not have a DisplayPort connection (such as a 4K TV), but in this situation, the monitor and the video card matched up well, and the price was good.Even with a 32" monitor, I was a little concerned going in that it would be too small for comfort to use without scaling. By comparison, a 24" 1920x1200 monitor is approximately 96 dpi, whereas this monitor is approximately 140 dpi. Without scaling, that means that everything is going to be about 50% smaller.Everything went very smoothly upon installation, and Windows 8.1 detected the high resolution of the monitor and automatically set it to scale so that dialogs and programs weren't too small to see decently. Unfortunately, this caused text to be slightly blurry, and no adjustment of the scaling settings could get the sharpness that I'm accustomed to in non-scaled displays. Since I wanted the extra desktop real estate, I set the display to not scale, but that reduced the size of programs and dialogs to a physical size that made it difficult to see things comfortably. It did make the text very sharp, and I really wanted this to work out, so I spent a couple of weeks trying to come up with a scenario that I would be happy with.To see an illustration of the difference between scaled and non-scaled, I have attached screen captures of Adobe Dreamweaver in both modes. The non-scaled image is very sharp, while the scaled image has a slight blur to everything that can be tiring when viewing text for many hours a day.That aside, once you see the gorgeous images that this monitor is capable of, you may not want to use a lesser monitor. Watching 4K videos on YouTube (esp. those in the Jacob + Katie Schwarz channel) will assure you that this is a monitor you'll want to keep unless something gets in your way. Unfortunately, the scaling issue as well as the small size of non-scaled content was a big negative for me.The second negative came from the monitor itself. Unfortunately, my monitor had a buzzing sound emanating from around the power plug connection. In a busy office environment it may not have been noticeable, but in my quiet office, it was annoying. Given that I bought the monitor from Amazon Warehouse Deals at a substantial discount off the list price of a new monitor, I really wanted it to work out, so I tried to see if I could deal with it. Even after a couple of weeks, I was never able to get over it, and while I could have tried to get a replacement, I decided that the issue that I had with the size of the display in the non-scaled mode was another negative that I couldn't overcome.The buzzing problem is a risk you take when buying something that is not new. Looking at many reviews for this monitor, it appears to be an isolated issue and not a widespread issue. Kudos to Amazon for its great return policy.This experience showed me the benefits of having a 4K monitor, though, and I think I'm hooked. I just know, that for my situation, I need to have a larger monitor so that the dpi is less than 140 so I don't need glasses just to see things comfortably. That means that something in the 40" range would probably work quite well, but there is only one monitor available domestically that is 40" that is specifically intended to be used as a monitor (the Philips BDM4065UC). The reviews are a little questionable on that unit, and the only other options are monitors sourced directly from South Korea, so I'm looking at 4K TV's that can do 3840x2160 at 60Hz and 4:4:4 chroma, which is a rabbit hole all in its own. I keep hoping that more manufacturers will release 40-43" monitors in the meantime, but it's been a couple of months, and nothing yet.If you can deal with the slight blurriness of the display when being scaled (or find a setting that suits you that I couldn't), or you have very good eyesight to see very small (but sharp) text, this is a very nice monitor. Its retail price is quite high, though, so I suggest looking at the specs and reviews for other 4K monitors to see if they might fit your needs at a lower price. The 27" market is crowded, and the 32" less so, with 40" a rarity, but once you see a 4K display you might never want a 1080p monitor again, and you'll look at your 1366x768 laptop with disdain for its shortcomings.

### ⭐⭐⭐⭐ 







  
  
    Great monitor, but MST is buggy, customer support non-existant
  

*by D***Y on Reviewed in the United States 🇺🇸 on September 25, 2013*

As someone who's had this monitor since it started shipping out (I pre-ordered), I think it's one of the best 4k monitors out there. It has good color reproduction, and I have not noticed any lag or ghosting. I absolutely love being able to game on this.Now for my main gripe for only giving it 4stars - if you are the owner of an nVidia card, enabling MST mode means not only does the screen NOT turn on turing POST, but I also suffer from a "cold boot bug". I have an Asus Rampage IV Extreme and two EVGA 780 GTXs in SLI. When I initially turn on my PC, the system freezes with debug code of 62. There's no BIOS fix from Asus for their motherboard. There's no official firmware update for the monitor from Asus to fix this. If I run in SST mode, I get no POST issues, and I can see my BIOS screen.The menu buttons are all on the side of the monitor, which makes them awkward to use since you can't see what you are pressing. They include a sticker you could place on the side of the monitor, but I find that to be a ridiculous fix for such bad placement. If MST just worked perfectly all the time, I probably would not need to screw around with the OSD much, and it would be a non-issue I guess.nVidia has stated that Asus does have a firmware update that fixes the above POST issues, but I would need to contact their CS to get the firmware. Well it's been two weeks since I opened a ticket, and I've heard nothing. I've apparently been thrown into a black hole. When you spent such large amounts of cash, I would expect much better support. Perhaps you are better off waiting for a deal on the Sharp 4k monitor, which is pretty much the same monitor as this. You could also wait until next year for Dell to release their 4k version. Dell definitely has the better customer service.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/1214361-asus-pq321q-31-5-inch-4k-uhd-16-9-led](https://www.desertcart.us/products/1214361-asus-pq321q-31-5-inch-4k-uhd-16-9-led)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-17*