1. Introduction
The Acer Predator X34 is a 34-inch UWQHD (3440 x 1440) OLED curved gaming monitor designed to deliver an immersive visual experience. Featuring a 240Hz refresh rate, 0.01ms response time, AMD FreeSync Premium Pro technology, and VESA DisplayHDR True Black 400, this monitor is engineered for high-performance gaming and vibrant content display. Its 800R curvature and 21:9 aspect ratio enhance immersion, while comprehensive connectivity options including USB Type-C, DisplayPort 1.4, and HDMI 2.1 ensure versatility for various devices.

Figure 1: Acer Predator X34 Monitor Front View
2. Setup Guide
2.1 Unpacking the Monitor
Carefully remove all components from the packaging. Ensure the following items are present:
- Monitor
- Monitor Stand
- Power Cord
- USB Type-C Cable
- HDMI Cable
- USB Cable
2.2 Assembling the Stand
Attach the monitor stand to the back of the monitor panel. Ensure all screws are tightened securely to prevent instability. The stand is designed for easy assembly and provides robust support.
2.3 Connecting Cables
Connect the necessary cables to your monitor and computer/console. The Predator X34 offers multiple connectivity options:
- DisplayPort 1.4: For optimal gaming performance with high refresh rates and resolutions.
- HDMI 2.1 (x2): Supports next-generation consoles (PS5, Xbox Series X) and other HDMI-compatible devices.
- USB Type-C (90W PD): Provides data transfer, display connectivity, and 90W power delivery for compatible devices through a single cable.
- USB 3.2 Hub: Connect peripherals via the integrated USB hub.
Plug the power cord into the monitor and then into a power outlet.

Figure 2: Monitor Connectivity Ports
2.4 Initial Power On
Press the power button located on the monitor. The monitor should automatically detect the input signal. If not, use the On-Screen Display (OSD) menu to manually select the input source.
3. Operation
3.1 Display Features
The Predator X34 boasts an OLED UWQHD (3440 x 1440) display with an 800R curvature and 21:9 aspect ratio for an immersive viewing experience. Key features include:
- 240Hz Refresh Rate: Provides ultra-smooth motion for fast-paced gaming.
- 0.01ms Pixel Response Time: Minimizes ghosting and motion blur.
- AMD FreeSync Premium Pro: Ensures tear-free and stutter-free gameplay by synchronizing the monitor's refresh rate with your GPU's frame rate.
- VESA DisplayHDR True Black 400: Delivers exceptional contrast with deep blacks and vibrant colors.
- DCI-P3 99% Color Gamut: Offers a wide range of accurate and rich colors.

Figure 3: 240Hz Refresh Rate

Figure 4: 0.01ms Response Time

Figure 5: AMD FreeSync Premium Pro

Figure 6: Wide Color Gamut
3.2 On-Screen Display (OSD) Menu
Access the OSD menu using the buttons on the monitor to adjust settings such as brightness, contrast, color modes, input source, and gaming features. Refer to the quick start guide for specific button functions.
3.3 KVM Switch Functionality
The integrated KVM switch allows you to control multiple computers with a single keyboard and mouse connected to the monitor. Switch between connected devices seamlessly via the OSD menu or a dedicated hotkey (if available).
3.4 Ergonomic Adjustments
The monitor stand allows for various adjustments to optimize your viewing comfort:
- Height Adjustment: Raise or lower the monitor to eye level.
- Tilt Adjustment: Adjust the screen angle forward or backward.

Figure 7: Monitor Tilt Adjustment
4. Maintenance
4.1 Cleaning the Monitor
To clean the monitor screen, gently wipe it with a soft, lint-free cloth. For stubborn marks, lightly dampen the cloth with water or a mild, non-abrasive screen cleaner. Avoid using harsh chemicals or abrasive materials that could damage the screen surface.
4.2 Image Retention Prevention
As an OLED display, the Predator X34 incorporates an innovative image retention refresh mechanism to prevent image sticking. It is recommended to allow the monitor to perform its automatic refresh cycles. Avoid displaying static images for extended periods at maximum brightness. If a warning message for image retention appears, follow the on-screen instructions to initiate the refresh process.

Figure 8: EyeSafe 2.0 Technology
5. Troubleshooting
5.1 No Power/No Display
- Ensure the power cord is securely connected to both the monitor and the power outlet.
- Verify the power outlet is functional.
- Check if the power button on the monitor is pressed.
- If the monitor goes to sleep and does not wake up, try restarting the connected PC or console.
5.2 No Signal
- Confirm that the video cable (HDMI, DisplayPort, or USB-C) is securely connected to both the monitor and the source device.
- Select the correct input source using the OSD menu.
- Test with a different video cable if possible.
5.3 Image Retention Warning
- This is a normal protective feature for OLED panels. Follow the on-screen prompts to run the image retention refresh cycle.
- Avoid leaving static images on the screen for prolonged periods.
5.4 Poor Picture Quality
- Adjust brightness, contrast, and color settings via the OSD menu.
- Ensure your graphics card drivers are up to date.
- Verify the resolution and refresh rate settings on your computer match the monitor's capabilities (3440x1440, 240Hz).
6. Specifications
| Feature | Detail |
|---|---|
| Standing screen display size | 34 Inches |
| Screen Resolution | 3440x1440 (UWQHD) |
| Max Screen Resolution | 3440 x 1440 |
| Brand | Acer |
| Series | Acer Predator X34 |
| Item model number | UM.CXXAA.X01 |
| Item Weight | 27.4 pounds |
| Product Dimensions | 12.02 x 30.94 x 19.5 inches |
| Color | Black |
| Voltage | 240 Volts |
| Manufacturer | Acer |
| Aspect Ratio | 21:9 |
| Screen Surface Description | Matte |
| Refresh Rate | 240Hz |
| Response Time | 0.01ms |
| HDR Support | VESA DisplayHDR True Black 400 |
| Adaptive Sync | AMD FreeSync Premium Pro |
| Curvature | 800R |
| Color Gamut | DCI-P3 99% |
| Speakers | 2 Speakers, 5 Watts Per Speaker |
| VESA Mounting | 100 x 100mm |
| Brightness | Typ. 275nits, Peak 450nits, Peak 1300nits @ HDR 1.5% |
| USB Type-C Port | 1 x USB 3.2 (Type-C) port (Gen 1 up to 5 Gbps) supporting data, power (90W) and DisplayPort over USB-C |
| Video Ports | 1 x Display Port 1.4 and 2 x HDMI 2.1 |
| USB Hub | USB 3.2 Hub |
7. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your product or visit the official Acer support website. Acer offers various protection plans, including 4-Year Protection Plans and Complete Protect monthly plans, which may be purchased separately.
Return Policy: This product typically has a 30-day return policy for refund/replacement when purchased from Amazon.
For further assistance, you can contact Acer customer service directly.