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AOPEN

AOPEN by Acer 31.5 Inch 4K UHD ZeroFrame Home & Office Monitor | AMD FreeSync | Ultra-Thin Stylish Design | HDR 10 | 4ms G to G | Low Blue Light | Tilt | DP 1.2 & 2 x HDMI 2.0

  • Based on 466 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Jul 30
Order within 7 hours and 20 minutes
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Style: UHD


Features

  • 31.5" 4K UHD (3840 x 2160) Widescreen VA Display | Ultra-Thin with ZeroFrame
  • AMD FreeSync Technology
  • Refresh Rate: 60Hz | Response Time: 4ms (G to G) | HDR 10 Support
  • VESA mounting compliant (75 x 75mm) | Ergonomic Tilt: -5 to 15
  • Ports: 1 x Display Port 1.2 & 2 x HDMI 2.0 Ports (HDMI Cable Included)

Description

AOPEN's 31.5 inch ultra-thin IPS monitor with 4K UHD resolution delivers the incredible. Crisp, true-to-life colors come alive with the amazing 3840 x 2160 resolution, allowing you to enjoy High-Definition entertainment in the comfort of your home. Enjoy smooth video playback with a rapid 4ms response time. Through AMD FreeSync technology, the game’s frame rate is determined by your graphics card, not the fixed refresh rate of the monitor, giving you a serious competitive edge. Smooth, tear-free gameplay!! And a whole lot more. Your eyes will stay strain-free thanks to AOPEN VisionCare’s array of eyeprotecting technologies. (UM.JS2AA.003)

Brand: AOPEN


Screen Size: 31.5 Inches


Resolution: 4K UHD 2160p


Aspect Ratio: 169


Screen Surface Description: Matte


Aspect Ratio: 169


Screen Finish: Matte


Contrast Ratio: 100,000,0001


Refresh Rate: 60 Hz


Display Type: LCD


Display Technology: LCD


Viewing Angle: 170 Degrees


Brightness: 250 Nits


Has Color Screen: Yes


Picture Quality Enhancement Technology: AOPEN VisionCare, AOPEN BlueLightShield™


Screen Size: 31.5 Inches


Item Dimensions D x W x H: 8.81"D x 28.15"W x 20.18"H


Item Weight: 12.26 Pounds


Resolution: 4K UHD 2160p


Display Resolution Maximum: 3840 x 2160


Native Resolution: 3840x2160


Voltage: 5


Connectivity Technology: DisplayPort, HDMI


Hardware Connectivity: HDMI


Adaptive Sync: FreeSync


Additional Features: Frameless, Tilt Adjustment


Specific Uses For Product: Business, Gaming, Personal


Color: Black


Mounting Type: Wall Mount


Compatible Devices: Devices with HDMI or DisplayPort connectivity


Warranty Type: 3 Years Manufacturer Limited Warranty


Shape: Flat


Brand: AOPEN


Model Number: UM.JS2AA.003


Model Name: AOPEN 32SA2QK biip


Warranty Description: 3 year parts and labor


UPC: 195133225793


Manufacturer: Acer


Response Time: 4 Milliseconds


Total Number of HDMI Ports: 2


Number of Component Outputs: 2


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 30

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.

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Top Amazon Reviews

    • Perfect Monitors for My Walking Desk Setup!
Size: 19.5-inch
I recently got two AOPEN by Acer 20E0Q 19.5-inch monitors for my walking treadmill desk, and I couldn’t be happier with them! The size is ideal for my setup—compact enough to fit comfortably on my desk, but large enough to provide plenty of screen real estate. The picture quality is crisp and clear, and the monitors are easy to adjust to the perfect angle. What I really appreciate is how they stay stable while I’m walking. They don’t wobble or shake, which is important when using a treadmill desk. The design is sleek and modern, and they don’t take up too much space, which keeps my desk feeling organized and clean. If you’re setting up a walking desk or just need reliable, high-quality monitors, I highly recommend the AOPEN by Acer 20E0Q monitors. They’ve made working while walking a breeze! ... show more
Reviewed in the United States on March 4, 2025 by TheKaizenOne
    • Clear view
Size: 19.5-inch
Perfect for what I needed!! Reasonably priced, lightweight, perfect size for the space and works perfect!!
Reviewed in the United States on April 20, 2025 by Big Al
    • Good budget monitor
Size: 19.5-inch
Good budget monitor. Screen is plenty bright and has good color. The size is perfect what I was looking for. The resolution is not the most crisp, but is fine for my use as a HAM radio monitor. Nice that it has both HDMI and VGA inputs.
Reviewed in the United States on April 21, 2025 by T Lemons K9TWL
    • It does the job.
Size: 19.5-inch
This is a very cheap monitor with a rather limited viewing angle. That being said, it was the lowest priced new monitor on Amazon and I needed a HDMI Display for my hardware firewall, this monitor perfectly fits the role.
Reviewed in the United States on February 24, 2025 by Michael Petrarca
    • Unbelievably Bad Quality
Size: 19.5-inch
Review Image by Trung Le Trung Le
Here is why it is bad (yes ,i have tested every setting for hours and have tested all of the settings in the computer and through the monitor settings as well) 1) 19.5 inches for a 1600 display makes everything very big , i wouldn't mind a lower resolution if the monitor size was smaller. this makes it so that every website is normal on my other monitor but way bigger on this 2nd monitor. 2) Horrible viewing angles. If you are looking from higher view it is very bright and washes out the colors , if you look at it from too low it is very dark. the RANGE is so bad that just on my chair that i can lean back and the whole screen becomes soo dark 3)the black color is wayy to bright. if you have a movie with black bars on it, the black bars will glow. it is incapable of the color black actually being dark. it is absolutely GLARING if you have another monitor besides it that is capable of showing black and not still being bright. 4)All of this quality drop for what? 15hz which is barely noticeable even if you are a gamer. If any of this matters to you do not buy this product. ... show more
Reviewed in the United States on April 24, 2024 by Trung Le Trung Le
    • Better than expected
Size: 27-inch
I bought this for my husband to game in the second room. Its quite large, and the screen is beautiful. It reproduces colors as good as my high end ultrawide, and has fast response rate. We use it for gaming apex legends and Fortnite, the screen is fulfilling 100% of our needs and speeds we expect. Lightweight, stylish and the zero frame really adds to the "wow" factor. I had not heard of this brand, but we saw a positive review so we went for it. Seems it will last us many years. We are happy. Excellent budget FHD screen with IPS update: 1 year later. We have been so happy with it I wanted to update this review. Still looks brand new and no issues. Reliable! ... show more
Reviewed in the United States on October 23, 2024 by CN
    • Decent for the price
AOPEN 24SA2Y Hbi: Budget Brilliance with a Few Blips Overall Rating: 4 out of 5 stars For: Budget-conscious gamers, home office workers, casual entertainment seekers Against: Limited color accuracy for professional needs, low pixel density for text-heavy work, basic design Picture Quality: 4 out of 5 stars The AOPEN 24SA2Y delivers surprisingly good visuals for its price point. The Full HD resolution is crisp enough for everyday tasks and casual gaming, with vibrant colors and decent contrast. While not reaching the color accuracy of professional monitors, it's perfectly suitable for browsing, watching movies, and even enjoying some less demanding titles. However, text can appear slightly pixelated at close range, making it less ideal for extended periods of document editing or coding. Performance: 5 out of 5 stars This monitor shines when it comes to performance. The 100Hz refresh rate ensures smooth, tear-free visuals in fast-paced games and action movies. AMD FreeSync compatibility further eliminates stuttering and screen tearing for a more enjoyable experience, especially on compatible graphics cards. The 1ms response time minimizes motion blur, keeping things sharp even during intense action sequences. Features: 4 out of 5 stars The AOPEN 24SA2Y keeps things simple, offering essential features without any unnecessary bells and whistles. You get adjustable tilt for comfortable viewing angles, HDMI and VGA ports for compatibility with a variety of devices, and a low blue light mode to reduce eye strain during long sessions. However, it lacks USB ports, built-in speakers, and any fancy RGB lighting, which might be dealbreakers for some users who prefer a more feature-rich experience. Value: 5 out of 5 stars Where the AOPEN 24SA2Y truly shines is in its value proposition. It offers impressive performance, decent picture quality, and essential features at a very competitive price. For budget-conscious users who prioritize smooth gameplay and comfortable viewing without needing professional-grade color accuracy, it's a fantastic choice. Things to Consider: Limited Color Accuracy: This monitor isn't ideal for professional photo editing or graphic design work due to its limited color gamut. Low Pixel Density: The Full HD resolution can appear slightly pixelated at close range, especially for text-heavy tasks. Basic Design: The minimalist design might not appeal to users who prefer a more flashy or feature-rich aesthetic. Final Verdict: The AOPEN 24SA2Y Hbi is a budget-friendly powerhouse that delivers smooth performance, decent visuals, and essential features at an unbeatable price. While it has some limitations in color accuracy and pixel density, it's a perfect choice for casual gamers, home office workers, and anyone looking for a reliable and affordable monitor for everyday use. Just remember, if you need a monitor for professional work or prefer a feature-rich experience, you might want to look elsewhere on Amazon ... show more
Reviewed in the United States on January 11, 2024 by Dylin
    • Cheap 2nd Monitor
Size: 19.5-inch
Perfect cheap 2nd monitor that pairs well with a primary monitor. I even bought a second one.
Reviewed in the United States on April 11, 2025 by Someone

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