Appliances Memorial Day SaleFree delivery. Ends 6/3. Terms apply.Shop now

Main Content
Only at Best Buy

AOC - 27" Q27G40XMN Mini-LED, QHD, 180hz Gaming Monitor - Black

Model: Q27G40XMN
SKU: 6617199
$299.99
or
$25.00/mo.
suggested payments with 12-Month Financing
Show me how
Standard Geek Squad Protection
94% of reviewers would recommend
Warranty Protection Plans
Availability
Available for pickup today at a nearby store
Order now for pickup on Thu, May 21 at
Act fast - Only 2 left at nearby store!
Sold by
Best Buy

Key Accessories:

Highlights

  • Key Specs
    • Refresh Rate: 180Hz (The number of frames per second the device can produce natively without enhancement. Higher rates help produce smooth, seamless pictures.)
    • Maximum Resolution: 2560 x 1440 (Maximum resolution refers to the highest number of pixels that a screen can process and display. Higher resolution signals produce more detailed images.)
    • Response Time: 1 milliseconds (The speed at which pixels can change colors is called response time. It is measured in milliseconds (ms).)
    • Panel Type: VA (Technology that affects response time and image quality.)
    • Synchronization Technology: G-SYNC Compatible (NVIDIA Adaptive Sync) (Generally, these technologies allow syncing between a computer/console game's frame rate and the device's refresh rate for a smoother display without tearing.)
    • Screen Size: 27 inches (Size of the screen, measured diagonally from corner to corner.)
    • Display Connector(s): 1 x DisplayPort 1.4, 1 x HDMI 2.0 (The number and type of connectors used to connect to an external display.)
  • General
    • Brand: AOC
    • Model Number: Q27G40XMN
    • Product Name: 27" Q27G40XMN Mini-LED, QHD, 180hz Gaming Monitor
    • Color: Black
    • Operating System Compatibility: Windows, Mac, Linux
  • Display
    • Refresh Rate: 180Hz (The number of frames per second the device can produce natively without enhancement. Higher rates help produce smooth, seamless pictures.)
    • Maximum Resolution: 2560 x 1440 (Maximum resolution refers to the highest number of pixels that a screen can process and display. Higher resolution signals produce more detailed images.)
    • Native Resolution: 2560 x 1440 (Native resolution of a screen refers to its single, fixed resolution. Sometimes screens must scale an image up or down in order to fit the native resolution. This can cause a loss of resolution or detail.)
    • Contrast Ratio: 1200:1 (Measured difference between a displayed image's brightest whites and darkest blacks. The larger the first number, the more detail and color that can be displayed.)
    • Response Time: 1 milliseconds (The speed at which pixels can change colors is called response time. It is measured in milliseconds (ms).)
    • Display Type: LED
    • Panel Type: VA (Technology that affects response time and image quality.)
    • Synchronization Technology: G-SYNC Compatible (NVIDIA Adaptive Sync) (Generally, these technologies allow syncing between a computer/console game's frame rate and the device's refresh rate for a smoother display without tearing.)
    • Aspect Ratio: 16:9 (The measurement of the width of a screen compared to the height of a screen, expressed as a ratio.)
    • Curved Screen: false
    • Brightness: 450 candela per square meter (A measure of the total light output.)
    • Screen Size: 27 inches (Size of the screen, measured diagonally from corner to corner.)
    • High Dynamic Range (HDR): false (An HDR-compatible 4K TV or other HDR-compatible product displays HDR video content when it's available from sources like 4K Ultra HD Blu-ray Discs and 4K streaming services.)
    • Horizontal Viewing Angle: 178 degrees (The maximum angle at which the display can be viewed with acceptable visual performance from either side.)
    • Vertical Viewing Angle: 178 degrees (The maximum angle at which the display can be viewed with acceptable visual performance from above or below.)
    • Touch Screen: false (Touch-screen devices make navigating more intuitive. Using a touch-screen display, you can do things such as tap to select, hold and drag to move items, swipe to scroll, and pinch to zoom.)
    • On-Screen Display Languages: English, French, Czech, Russian, German, Chinese, Spanish, Portuguese, Italian, Dutch, Swedish, French, Finnish, 5 additional (The available language options for displayed text.)
    • Display Surface: Anti-glare
  • Connectivity
    • Number of DisplayPort Inputs (Total): 1
    • Number of HDMI Inputs (Total): 1
    • Number of VGA Ports: 0 (VGA (Video Graphics Adapter or Video Graphics Array) is a display standard that transmits via analog signals. This type of interface is typically used to connect a computer to a display device such as a monitor, projector, or TV.)
    • Number of DVI Inputs: 0 (The number of digital cables carrying analog (VGA) video signals that can be connected to the product.)
    • Number of Mini DisplayPort Inputs: 0
    • Number of Thunderbolt Ports (Total): 0
    • Display Connector(s): 1 x DisplayPort 1.4, 1 x HDMI 2.0 (The number and type of connectors used to connect to an external display.)
    • Headphone Jack: true (The device features an interface that allows for the connection of headphones.)
  • Compatibility
    • Wall Mountable: true (The product is able to be secured to a wall. Some products are designed ready to mount, while others may require additional hardware/accessories for installation.)
    • VESA Wall Mount Standard: 100mm x 100mm (VESA wall mount standards refer to the spacing of screw holes built into a TV in order to fit with standard TV wall mounts. These standards are implemented into most TVs and monitors.)
    • Voice Assistant Built-in: No (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
  • Features
    • Tiltable: true
    • Adjustable Stand Height: false
    • Anti-Glare: true (Product has features, such as a matte finish, that reduce the likelihood for screen glare.)
    • Eye Relief Features: Flicker free
    • Built-In Webcam: false
    • Integrated Speaker(s): false
  • Dimensions
    • Product Height With Stand: 18.9 inches
    • Product Height Without Stand: 14.44 inches
    • Product Width: 24.2 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth (With Stand): 7.6 inches
    • Product Depth Without Stand: 2.36 inches
    • Product Weight: 14 pounds (The out of box weight of the item.)
    • Stand Included: true
  • Power
    • Power Consumption: 37 watts
    • Power Saving/Off Mode: 0.5 watts (This mode will turn the display and/or the device off, or into a standby mode, after a preset length of time with no activity to conserve power.)
  • Certifications Listings & Approvals
    • ENERGY STAR Certified: false (Devices carrying the ENERGY STAR service mark, such as computer products and peripherals, kitchen appliances, and other products, generally use 20% to 30% less energy than required by federal standards.)
    • EPEAT Qualified: false (The Electronic Product Environmental Assessment Tool (EPEAT) was designed to provide an environmental assessment tool for purchasers. In order to qualify for EPEAT, a product must meet all 23 required criteria.)
  • Warranty
    • Warranty - Parts: 3 years
    • Warranty - Labor: 3 years
  • Other
    • UPC: 685417739684

Witness stunning visuals with AOC Q27G40XMN, 27" Mini-LED backlight technology, delivering deeper blacks, brighter whites, and more vibrant colors.

  • Mini-LED panel technology: Experience clarity, vibrant colors, and richer contrast with Mini-LED technology.
  • Quad HD Resolution: Experience stunning clarity and immersive detail with Quad HD (QHD) resolution. At 2560x1440, QHD strikes the perfect balance between Full HD and 4K, offering sharper visuals and smoother gameplay without straining your system. Enjoy crisper textures, enhanced depth, and a wider field of view—giving you a visual and competitive edge.
  • 180Hz Refresh Rate: Enjoy a smooth and responsive gaming experience with a lightning-fast 180Hz refresh rate, 1ms response time.
  • Blazing fast 0.5ms pixel response time: In gaming, every millisecond counts and can be the differentiator between hitting or missing a shot. Fast response time also eliminates ghosting and motion blur.
  • Ultra smooth gameplay with Adaptive Sync: Virtually eliminates stuttering, tearing, and judder by matching your' monitor's frame rate with that of your GPU. Also useful for watching media.
  • Breathtaking HDR realism with VESA CERTIFIED HDR1000: VESA HDR certification ensures ultra-bright highlights, deep contrast, and vibrant, true-to-life colors for a more immersive experience. Whether you're navigating dark dungeons or sunlit battlefields, HDR1000 delivers stunning visual depth and detail—bringing every moment to life like never before.
  • Re-Spawn 3-Year Warranty: Enjoy peace of mind with an industry leading Re-Spawn warranty that inclludes 3-year dead pixel coverage, 3-year advance placement coverage, and 1-year, one-time accidental damage replacement.
  • G-Menu customization: AOC G-Menu is a free tool that you can install on your PC to have complete customization paired with maximum convenience.
Whats Included
  • 27" Monitor with Stand
  • Power cord
  • HDMI Cable
Product Manuals

Q: What is the response time of this monitor?

A: The response time of the monitor is 1ms GTG (Grey-to-Grey).

Q: Is this monitor compatible with G-Sync?

A: Yes, this monitor is compatible with G-Sync through NVIDIA Adaptive Sync.

Q: What type of backlight technology does this monitor use?

A: This monitor uses Mini-LED backlight technology.

Q: What is the resolution of this monitor?

A: The monitor has a QHD resolution of 2560 x 1440.

Q: Does this monitor have a high refresh rate?

A: Yes, the monitor has a refresh rate of 180Hz.

Q: How long is the warranty on this monitor?

A: This monitor comes with a Re-Spawn 3-year warranty, including a year of accidental damage replacement.

Q: Does this monitor have built-in speakers?

A: No, this monitor does not have built-in speakers.

Q: What kind of cable comes with this monitor? Is it a display port cable, HDMI, and can it support the 180hz that the monitor can do?

A: AOC Q27G40XMN includes a HDMI and DP cable in the box. This model supports a refresh rate of up to 180Hz via DP and 144 via HDMI.

Sponsored

Compare similar products

AOC - 27" Q27G40XMN Mini-LED, QHD, 180hz Gaming Monitor - Black
AOC - 27" Q27G40XMN Mini-LED, QHD, 180hz Gaming Monitor - Black

Witness stunning visuals with AOC Q27G40XMN, 27" Mini-LED backlight technology, delivering deeper blacks, brighter whites, and more vibrant colors.

Alienware - AW2725DM 27" IPS LED QHD 180Hz 1ms FreeSync and G-Sync Compatible Gaming Monitor with HDR (HDMI, DisplayPort) - Interstellar Indigo

Alienware 27 Gaming Monitor - AW2725DM. Bring your favorite games to life in a 27” QHD gaming monitor featuring a Fast IPS panel, vivid color and smooth visuals.

AOC - 27” QD-OLED, QHD, 240hz, G-Sync Compatible, .03ms, Gaming Monitor - Black

The Q27G41ZDF delivers lightning-fast 240Hz refresh rates, 0.03ms GtG pixel response, and low input lag for ultra-responsive gameplay. The ultra-responsive QD-OLED panel and 10-bit color space provides sharp visuals with unbelievable contrast and vibrant colors, while the NVIDIA G-SYNCA Compatible AdaptiveSync and HDR ready panel enhances clarity and fluidity. Built for eSports, its stable base ensures a solid setup for intense matches.

MSI - MAG 275QPF X30 27" QHD 300Hz 1ms Adaptive Sync Gaming Monitor (DisplayPort, HDMI) - Black

MAG 275QPF X30 design language that conveys ruggedness and toughness, embodying the very essence of the MAG style. For gamers who are determined to dominate their digital battlegrounds, the MAG series is here to stand with you, establishing the ultimate defense.

Pros for AOC - 27" Q27G40XMN Mini-LED, QHD, 180hz Gaming Monitor - Black
Color Quality, HDR Performance, Contrast, Local DimmingOverall Performance, Refresh Rate, Resolution, Connectivity, DesignOverall Performance, Refresh Rate, OLED Quality, Black LevelsOverall Performance, Refresh Rate, Resolution, Connectivity, Adjustability
Cons for AOC - 27" Q27G40XMN Mini-LED, QHD, 180hz Gaming Monitor - Black
Refresh Rate, Viewing Angle, Monitor StandSpeakers, BrightnessBrightness, Connectivity, SizeSpeakers, Backlight Bleed, Button Layout, Stand Design

Specs

Reviews

Customers are saying

Customers are delighted by the excellent image quality, especially the color and contrast. Many users also appreciate the impressive HDR performance. Some find the viewing angles and refresh rate to be just acceptable. A few customers mentioned the monitor stand could be improved.

This summary was generated by AI based on customer reviews.
  • Color Quality (77)
  • HDR Performance (21)
  • Contrast (14)
  • Refresh Rate (7)
  • Viewing Angle (7)
  • Monitor Stand (3)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 4 out of 5 stars

    Amazing Picture With Some Minor Compromises

    TL;DR - If you're willing to put up with a terrible stand (or have a VESA mount) and deal with a somewhat bare-bones selection of ports, this monitor delivers great picture quality at a pretty strong price point. Things I like: - The HDR performance is amazing on both Windows and MacOS. While it doesn't come close to my MacBook Pro's display, it puts up a good fight and, for the price, it's hard to beat on HDR performance alone. - SDR performance is good, and it still gets brighter than most monitors in its price range. - Local dimming is fantastic; I don't seem to have any of the issues regarding the local dimming bug; black uniformity and contrast are impeccable. It's no OLED, but there's also zero risk of permanent image retention (burn-in). Things I don't like: - You're limited to 8-bit color at the full 180hz; if you want 10-bit color, you're stuck at 120hz or below for refresh rate. Definitely a bummer. - Out-of-the-box color accuracy could be better. It's not awful, but it is oversaturated. - Viewing angles are merely okay. - The stand is horrid. I immediately went to using an VESA mount. - Feature set is barebones; only 1 DP and 1 HDMI, no USB hub, and the stand is tilt adjustment only. For >$300 I can't really complain, but these are negatives. - It's a VA panel, so ghosting is present, but with the overdrive set to "faster" it's barely noticeable. - No joystick for OSD control, and using the buttons is a little awkward.

    JasonB1984 Posted

  • Rated 5 out of 5 stars

    A great value monitor for PC games snd movies.

    Pros, 1. This is a great looking 1440p 180hz display that's great for PC and console gaming, watching movies, watching internet videos and content creation. 2. It's a VA panel with mini led technology so it give a great display for a great price. It's picture is close yo some OLED oanel, but not that good though. 3. 180hz refresh rate with single player games is great. 4. Having Adaptive Sync makes this monitor idea for Nvidia and AMD GPUs so you don't get screen tearing. 5. It's HDR 1200 and has over 1100 local dimming zones do the contrat it great, the brightness is great and the black are good(look under cons). Thus is great for warching movies and HDR gaming. 6. The stand is better than I expected from other reviewers(look under cons). 7. It has a 100 VESA mount for mounting to a wall or using a better stand. 8. It had an included Display Port cable of good quality. 9. For being mostly plastic the build quality seems decent. 10. The response latency is below 1ms. Very smooth. Cons, 1. This is a VA panel so for best viewing you have to be looking at the display at a fairly straight angle. 2. Even though the blacks are good it's still a good bit behind an OLED monitors, but I'll say OLED monitors do cost a lot moe money and risk screen burn in. 3. If you're a competitive Esports and First person shooter player this monitor probably isn't ideal for you. IMO you're better off getting a 240hz non-HDR 1440p monitor which many are of good quality and can be found cheaper. 4. This is a sidegrade from the previous 27 inch budget display. The stand is cheaper eith limited motion, it has less video inputs and the input are slower at HDMI 2.0 and DP 1.2 so the response time isn't going to always be as great. 5. From point 4, some users have reported their Nvidia GPUs can't go beyond 170hz while using Adaptive Sync. I didn't encounter this issue, but my momitor may have never firmware. By the way, there's no USB ports for firmware updates. 6. Even though the stand is usable I'd recommend either getting an aftermarket VESA mount stand or VESA mount to the wall so you don't risk this monitor being knocked over. 7. Last, this us only a 1440p momitor so don't expect 4k out of it. I will say since it's only 27 inches the display seems really sharp. I was considering buying a 32 inch monitor, but I don't have enough room in my desk area, the pixel per square inch wouldn't be as sharp and 32 inches is overkill for my vision. Orher people nay have a different prefer so again may sure you know what you want. All in all I don't regret this monitor since I'm not a competitive gamer and I love the smoothness of 180hz and less than 1ms of response time. I'm using a RTX 5099 which you may say that HPU is overkill for tgat monitor, but my use for that GOU is more than gaming, it's also about upscaling and editing my old DVDs, Blurays, movie files and pictures so monitor size isn't as important as it clearity. This monitor has great clarity.

    Realmofreal Posted

  • Rated 4 out of 5 stars

    Amazing Picture Quality but HORRIBLE Setup

    Many of the reviews are both true and false. Yes, if you take it out of the box and slap on HDR, all of the colors look terrible. Yes, an all white screen is like staring into the face of the sun. Yes, the colors require significant tweaking, And yes, the configuration is very limiting due to all of the software locks. However, with all that said, you can absolutely tweak this display to look AMAZING for the price. I spent about 5 days tweaking and ultimately landed on the following settings to get an amazing picture quality for both gaming, modeling, programming, and every day use: -Game Color 13 -Overdrive: Faster -Contrast: 62 -Gamma: 2.4 -Color Temp: Normal -Color Space: Native -LowBlue: Office -Local Dimming: Medium -HDR Off -Windows Color Management On Yes, that's right - I'm not using HDR. I'm still in the opinion that it's not practical, since it only introduces more compatibility issues with many applications and games and this monitor can't reliably handle the full 4:4:4 signal above 120hz refresh rate. Despite turning off HDR, this combo results in a perfect balance of true to life colors while looking very vibrant. If you don't use the Windows color management, you get reds that look oversaturated, and the LowBlue setting reigns in the panels tendency to get blue crazy. I spent hours trying to manually dial in the color space on the panel until realizing the Windows ICC profile works so much better. Now I'm running at 1440p with 180hz on an Nvidia card without hacking the resolution profile, using display port via usb-c alt mode for my laptop. It's stable using a Cable Matters passive adapter. For Acer users, you MUST use the "Automatic" mode in PredatorSense for this to be reliable. Otherwise, you have to disconnect and reconnect the USB cable on every boot to make the DP over USB handshake stable. If you use HDMI, doesn't matter what setting you use but you'll be capped at 144hz refresh. Occasional flicker if you leave framerate uncapped on a game but vsync fixes that. There is minor black smearing if you look at the UFO test but I can't observe it in real world gaming. Do NOT use "Fastest" overdrive mode, as it is far worse with smearing if you run a high refresh rate. I almost returned this monitor, but the blacks are amazing and colors approach OLED quality without the text fringing issues that most 1440p OLED panels still have today. It is overly bright and has a very accurate colors if you use sRGB color space and turn off local dimming. It's still a little too bright honestly but you can tweak that to your tastes as needed by adjusting contrast. If you don't care about brightness, lots of IPS screens with similar specs for the same price that are much less of a hassle to tune. Pro tip: Install the AOC G-Menu software to tweak the monitor directly from Windows instead of having to mess with all of the settings in the OSD. Disable the auto-startup after you're done tweaking unless you want to setup some macros to change monitor settings, but this is also a great way to work around the brightness issues.

    TinkeringTurtle Posted

No content
Sponsored

Similar products from outside of Best Buy

sponsored
Ask BlueBETA
Ask a question

Finance Options

My Best Buy® Credit Card
Choose a benefit:Or
Buy Now, Pay Later
4 payments starting at $75.00
Lease to own

Apply today with no credit needed and enjoy flexible payment options.

Special Offers

Top Offers
Included with Purchase