Acer
Acer UM.JX3AA.V04 Predator 31.5" 4K 144Hz Gaming Monitor
★★★★★
4KUHD3840 x 216065WUSB 3.1
Immerse Yourself in Stunning Visuals and Unmatched Gaming SpeedIntroducing the Acer Predator XB323QK, a high-performance gaming monitor designed for uncompromising gamers. Featuring a 31.5-inch UHD display with a blazing-fast 144Hz refresh rate and AMD FreeSync Premium technology, this monitor de...
$899.99*
Check availability
*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.
Notice a mistake? Let Us Know
Overview
Immerse Yourself in Stunning Visuals and Unmatched Gaming Speed
Introducing the Acer Predator XB323QK, a high-performance gaming monitor designed for uncompromising gamers. Featuring a 31.5-inch UHD display with a blazing-fast 144Hz refresh rate and AMD FreeSync Premium technology, this monitor delivers smooth, tear-free gameplay with exceptional color accuracy...
Specifications:- Screen Size: 31.5"
- Resolution: UHD 3840 x 2160
- Panel Type: IPS
- Refresh Rate: 144Hz
- Response Time: Up to 0.5ms
- Technology: AMD FreeSync Premium
- HDR: HDR400
- Connectivity: USB Type-C, DP 1.4, 2 x HDMI 2.1
Key Features
31.5" UHD (3840 x 2160) Widescreen IPS Gaming Monitor | AMD FreeSync Premium Technology
Refresh Rate: 144Hz | Response Time: 1ms (G to G) - Up to 0.5ms (G to G) | Brightness: Native 400nits, HDR400 Mode: Peak 400nits | 2 speakers, 4 watts per speaker
High Brightness and Contrast with VESA Certified DisplayHDR400 | Color Saturation: DCI-P3 90% | Color Accuracy: No color difference with Delta E<1
TUV and Eyesafe Certified | Low Blue Light | Built-in KVM switch
ErgoStand: Ergonomic Tilt: -5° to 35° | Height Adjustment Range: 5.12" | Swivel: +/- 30°
USB Type-C: 1 x USB 3.1 (Type-C) port (Gen 1 up to 5 Gbps) supporting data, power (65W) and DisplayPort over USB-C | Video Ports: 1 x Display Port 1.4, 2 x HDMI 2.1 (Supports PS5 and XBOX: 4K UHD@120Hz) | USB Ports: 4 x USB 3.0 | HDMI Cable, Display Port Cable, USB Type-C Cable and USB Cable Included
Specifications
Screen Size
31.5 inches
Resolution
UHD (3840 x 2160)
Panel Type
IPS
Refresh Rate
144Hz
Response Time
1ms (G to G), up to 0.5ms (G to G)
Brightness (Native)
400nits
Brightness (HDR400 Peak)
400nits
HDR Certification
VESA Certified DisplayHDR400
Color Saturation
DCI-P3 90%
Color Accuracy
Delta E<1
Speakers
2 x 4 watts
Gaming Technology
AMD FreeSync Premium
Certifications
TUV and Eyesafe Certified
ErgoStand Tilt
-5° to 35°
ErgoStand Height Adjustment
5.12 inches
ErgoStand Swivel
+/- 30°
USB Type-C Ports
1 (Gen 1, 5 Gbps, 65W power, DisplayPort Alt Mode)
DisplayPort Inputs
1 x Display Port 1.4
HDMI Inputs
2 x HDMI 2.1 (4K UHD@120Hz support for PS5/XBOX)
USB Ports
4 x USB 3.0
Included Cables
HDMI Cable, Display Port Cable, USB Type-C Cable, USB Cable
Pros & Cons
👍 Pros
- Features a large 31.5" UHD (3840 x 2160) IPS display with a rapid 144Hz refresh rate for fluid visuals.
- Offers a quick response time of 1ms G to G, with an option to go down to 0.5ms, crucial for fast-paced gaming.
- Includes AMD FreeSync Premium Technology, which helps eliminate screen tearing and stuttering during gameplay.
- Delivers high brightness and contrast with VESA Certified DisplayHDR400 and excellent DCI-P3 90% color saturation.
- Equipped with an ergonomic ErgoStand, allowing extensive tilt, height, and swivel adjustments for optimal viewing comfort.
- Features a built-in KVM switch, enabling control of multiple devices with one set of peripherals, and includes a variety of cables for immediate setup.
👎 Cons
- While offering a 1ms G to G response time, achieving 0.5ms is "Up to" and may not be consistent or universally applicable.
- The monitor's high-end features like 4K resolution and 144Hz refresh rate demand a powerful graphics card for optimal performance.
- The included 4-watt speakers might be adequate for basic audio but may not satisfy users seeking high-fidelity sound.
Frequently Asked Questions
What consoles are supported for 4K@120Hz on this monitor?
The Acer Predator 31.5" monitor supports 4K UHD@120Hz through its HDMI 2.1 ports for both PS5 and XBOX consoles.
Does this monitor offer blue light reduction?
Yes, this monitor is TUV and Eyesafe Certified and features Low Blue Light technology to help reduce eye strain.
Can this monitor be adjusted for different viewing angles?
Yes, the ErgoStand allows for extensive adjustments, including tilt from -5° to 35°, height adjustment of 5.12 inches, and swivel of +/- 30°.
What is the response time of this gaming monitor?
The Acer Predator monitor features a response time of 1ms (G to G), with the capability to achieve up to 0.5ms (G to G) for extremely fast pixel transitions.
Are there multiple ways to connect devices to this monitor?
Yes, it offers versatile connectivity including 1 Display Port 1.4, 2 HDMI 2.1 ports, and a USB Type-C port that supports data, 65W power, and DisplayPort over USB-C.
Related Products
