KOORUI S2721XO 27-inch QD-OLED Gaming Monitor User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation of your KOORUI S2721XO 27-inch QD-OLED Gaming Monitor. Please read it thoroughly before using the product and retain it for future reference.

The KOORUI S2721XO is a high-performance QD-OLED gaming monitor designed to deliver exceptional visual clarity and responsiveness. Featuring a 27-inch QHD (2560x1440) display, a 240Hz refresh rate, and an ultra-fast 0.03ms response time, it is optimized for immersive gaming and demanding visual tasks. The monitor also supports AdaptiveSync, 99% DCI-P3 color gamut, and HDR True Black 400 for vibrant, true-to-life colors and deep contrasts. Its ergonomic stand offers extensive adjustability, and VESA compatibility allows for flexible mounting options.

2. Package Contents

Verify that all items listed below are present in your product packaging:

• KOORUI S2721XO 27-inch Monitor
• Power Adapter
• DisplayPort Cable
• User Manual (this document)

3. Setup

3.1 Assembling the Stand

The monitor stand consists of two main parts: the stand base and the stand column. Carefully connect these two parts by sliding them together until they securely lock. Then, attach the assembled stand to the back of the monitor display. Ensure the stand is firmly seated and locked into the slot on the monitor's rear panel before placing the monitor on a surface. Improper assembly may lead to instability.

Image: Monitor stand demonstrating various ergonomic adjustments.

3.2 Connecting the Monitor

Connect the monitor to your computer or other devices using the provided cables. The monitor features multiple input ports:

• Power Cable: Connect the power adapter to the monitor's DC input and then to a power outlet.
• HDMI 2.1 (x2): Use an HDMI cable to connect to devices supporting HDMI output.
• DisplayPort 1.4: Use the included DisplayPort cable for optimal performance with compatible graphics cards.
• Audio Output Interface: Connect external headphones or speakers via the 3.5mm audio jack.

Image: Rear panel connectivity ports.

3.3 Initial Power On

After connecting all necessary cables, press the power button, usually located on the back or bottom of the monitor, to turn it on. The monitor should automatically detect the input signal. If not, you may need to manually select the input source using the On-Screen Display (OSD) joystick.

4. Operating

4.1 Basic Controls (OSD Joystick)

The monitor's settings are controlled via a single OSD joystick, typically located on the rear panel. This joystick allows you to navigate through menus and adjust various display parameters.

• Press: Power on/off, select menu item.
• Up/Down: Navigate menu options, adjust values.
• Left/Right: Navigate menu options, adjust values.

Image: OSD Joystick design detail.

4.2 Display Settings

Access the OSD menu to configure display settings for optimal viewing and gaming experience.

• Resolution: The native resolution is QHD (2560x1440). Ensure your device's output resolution matches for the sharpest image.
• Refresh Rate: Set your device's refresh rate to 240Hz for the smoothest motion. This can usually be adjusted in your operating system's display settings.
• AdaptiveSync: Enable AdaptiveSync in the OSD menu and on your graphics card settings to synchronize the monitor's refresh rate with your GPU's frame rate, reducing screen tearing and stuttering.
• HDR True Black 400: This monitor is VESA DisplayHDR True Black 400 certified. Enable HDR in your operating system settings for enhanced contrast and brightness in compatible content.
• Color Settings: Adjust brightness, contrast, color temperature, and gamma to your preference. The monitor supports 99% DCI-P3 for accurate color reproduction.

Image: Visual representation of vivid color performance.

4.3 Ergonomic Adjustments

The monitor stand offers comprehensive ergonomic adjustments to enhance comfort during use:

• Height Adjustment: Adjust the monitor's height to eye level to reduce neck strain.
• Tilt: Tilt the screen forwards or backwards to find your preferred viewing angle.
• Swivel: Rotate the monitor horizontally to share your screen or adjust your viewing position.
• Pivot: Rotate the screen 90 degrees to portrait mode, ideal for coding or document viewing.

Image: Ergonomic stand adjustments.

4.4 VESA Mounting

For alternative mounting solutions, the monitor is VESA compatible (100x100mm). This allows you to attach it to a compatible monitor arm or wall mount (sold separately) for greater flexibility and desk space optimization.

Image: Monitor demonstrating VESA mount compatibility.

5. 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 screen-cleaning solution. Avoid using harsh chemicals or abrasive materials.
• Cleaning the Casing: Use a soft, dry cloth to clean the monitor's casing.
• Ventilation: Ensure the monitor's ventilation openings are clear and unobstructed to prevent overheating.
• Power Off: Always power off the monitor and unplug it from the power outlet before cleaning or if it will be unused for an extended period.

6. Troubleshooting

7. Specifications

8. Warranty and Support

Your KOORUI S2721XO monitor comes with a 3-Year Limited Warranty. For warranty claims or technical assistance, please contact KOORUI Technical Customer Support. Refer to the official KOORUI website or your purchase documentation for the most current support contact information.

9. Product Overview Video

Watch the official product overview video for a visual guide to the KOORUI S2721XO monitor's features and capabilities.