1. Introduction
This manual provides essential information for the safe and efficient operation of your CRUA CR270D 27-inch IPS UHD Gaming Monitor. Please read it thoroughly before using the product and retain it for future reference.
2. Safety Information
- Ensure the monitor is placed on a stable, level surface to prevent accidental falls.
- Do not expose the monitor to rain, moisture, or extreme temperatures.
- Avoid blocking ventilation openings to prevent overheating.
- Use only the power adapter supplied with the monitor.
- Disconnect the power cable from the outlet before cleaning or if the monitor will not be used for an extended period.
- Do not attempt to disassemble or repair the monitor yourself. Contact qualified service personnel for assistance.
3. Package Contents
Verify that all items are present in the package:
- CRUA CR270D 27-inch IPS UHD Gaming Monitor
- Monitor Stand (Base and Neck)
- Power Adapter and Cable
- HDMI Cable
- DisplayPort (DP) Cable
- User Manual (this document)
- Mounting Screws (for VESA mount)
4. Setup
4.1 Assembling the Stand
- Carefully remove the monitor from its packaging, keeping it face down on a soft, flat surface to prevent screen damage.
- Attach the stand neck to the monitor panel. Ensure it clicks securely into place.
- Attach the stand base to the stand neck and tighten the screw at the bottom of the base.
4.2 Wall Mounting (Optional)
The CRUA CR270D monitor supports VESA wall mounting (75mm x 75mm). Follow the instructions provided with your VESA-compatible wall mount kit. Ensure the stand is removed before attaching the monitor to a wall mount.
4.3 Connecting Cables
Locate the input ports on the rear of the monitor.
- Power: Connect the power adapter to the monitor's DC input and then plug the power cable into a power outlet.
- Video Input: Connect one end of the HDMI 2.1 or DisplayPort 1.4 cable to the corresponding port on the monitor and the other end to your computer or gaming console.
- Audio Output: If using external speakers or headphones, connect them to the 3.5mm audio output jack.
5. Operating Instructions
5.1 Power On/Off
Press the power button, typically located on the rear or bottom of the monitor, to turn the monitor on or off.
5.2 OSD Menu Navigation
The On-Screen Display (OSD) menu allows you to adjust various monitor settings. Use the joystick or buttons (location may vary) to navigate the menu:
- Press the joystick/button to open the OSD menu.
- Move the joystick Up/Down/Left/Right to navigate through options.
- Press the joystick/button again to confirm a selection or enter a sub-menu.
- Use the 'Exit' or 'Back' function to return to the previous menu or exit the OSD.
5.3 Input Selection
To switch between connected devices (e.g., PC, game console), access the OSD menu and select the 'Input' or 'Source' option. Choose the desired input (HDMI 1, HDMI 2, DP 1.4).
5.4 Dual-Mode Display (4K 144Hz / FHD 300Hz)
This monitor supports dual-mode operation. You can switch between:
- 4K UHD (3840x2160) at 144Hz: For high-resolution detail.
- Full HD (1920x1080) at 300Hz: For ultra-fast refresh rates, ideal for competitive gaming.
The switching mechanism is typically managed through your connected device's display settings or a specific OSD menu option on the monitor. Refer to your device's operating system display settings for resolution and refresh rate adjustments.

Image: Dual resolution comparison on the CRUA CR270D monitor.
5.5 AMD FreeSync
The monitor supports AMD FreeSync technology to synchronize the refresh rate with your graphics card, reducing screen tearing and stuttering. Ensure FreeSync is enabled in both the monitor's OSD menu and your AMD graphics card settings.
5.6 Ergonomic Adjustments
The monitor stand allows for various adjustments to optimize your viewing experience:
- Height Adjustment: Raise or lower the monitor to your preferred height.
- Tilt: Adjust the screen's vertical angle (forward/backward).
- Swivel: Rotate the screen horizontally (left/right).
- Pivot: Rotate the screen 90 degrees for vertical orientation.

Image: Ergonomic adjustments available on the CRUA CR270D monitor.
5.7 Built-in Speakers
The monitor includes built-in speakers for audio output. Volume can be adjusted via the OSD menu or your connected device's audio settings.
5.8 Blue Light Filter
To reduce eye strain during prolonged use, the monitor features a blue light filter. This setting can be adjusted or enabled/disabled through the OSD menu.
6. Maintenance
- Cleaning the Screen: Gently wipe the screen with a soft, lint-free cloth. For stubborn marks, lightly dampen the cloth with water or a non-abrasive screen cleaner. Do not spray liquid directly onto the screen.
- Cleaning the Casing: Use a soft, dry cloth to wipe the monitor casing. Avoid using strong detergents or solvents.
- Storage: If storing the monitor, place it in its original packaging or a protective cover in a cool, dry place.
7. Troubleshooting
| Problem | Possible Solution |
|---|---|
| No image on screen | Ensure the power cable is securely connected and the monitor is turned on. Verify the video cable (HDMI/DP) is properly connected to both the monitor and the source device. Select the correct input source via the OSD menu. |
| Image is blurry or distorted | Check the display resolution and refresh rate settings on your computer/console. Ensure they match the monitor's native resolution (3840x2160) and supported refresh rates. Try a different video cable. |
| No sound from speakers | Check the volume settings in the monitor's OSD menu and on your connected device. Ensure the audio output is correctly configured on your source device. If using external speakers/headphones, verify their connection. |
| Screen flickering | Ensure AMD FreeSync is properly configured. Check for updated graphics drivers. Reduce the refresh rate to see if the issue persists. |
| Monitor does not respond to controls | Power cycle the monitor (turn off, unplug, wait 30 seconds, plug back in, turn on). |
8. Specifications
| Feature | Description |
|---|---|
| Model Number | CR270D |
| Screen Size | 27 Inches |
| Panel Type | IPS |
| Resolution | 3840 x 2160 (UHD) up to 144 Hz, 1920 x 1080 (FHD) up to 300 Hz |
| Aspect Ratio | 16:9 |
| Image Brightness | 350 Candela (cd/m²) |
| Color Gamut | 120% sRGB |
| Contrast Ratio | 1500:1 |
| Adaptive Sync | AMD FreeSync |
| Connectivity | HDMI 2.1, DisplayPort 1.4 |
| Audio | Built-in Speakers, 3.5mm Audio Out |
| Ergonomics | Height, Pivot, Tilt, Swivel Adjustable Stand |
| Wall Mount | VESA 75mm x 75mm |
| Product Dimensions | 2.53 x 24 x 14 inches |
| Item Weight | 14.57 pounds |
9. Warranty and Support
CRUA is committed to providing high-quality computer monitors and premium services. If you encounter any questions or issues with your CRUA CR270D monitor, please contact our customer support team. We are available to assist you and resolve any problems you may experience.
For detailed warranty information, please refer to the warranty card included with your product or visit the official CRUA website.




