Introduction
This manual provides essential information for setting up, operating, and maintaining your ASUS ROG Strix XG259CMS 24.5" USB-C HDR400 Gaming Monitor. The ROG Strix XG259CMS is designed for high-performance gaming, offering a smooth 310Hz refresh rate and a rapid 1ms response time. It incorporates AI-powered features and versatile USB Type-C connectivity for an enhanced user experience.
Image: An overview of the ASUS ROG Strix XG259CMS monitor's key features, including its 24.5-inch Full HD display, 310Hz refresh rate, 1ms response time, Fast IPS panel, ELMB Sync, 110% sRGB color gamut, DisplayWidget Center, G-SYNC compatibility, and GamingAI enhancements.
Key Features:
- 24.5-inch Full HD (1920 x 1080) HDR display with an ultrafast 310Hz refresh rate.
- ASUS Fast IPS technology for 1ms (GTG) response time, ensuring sharp gaming visuals.
- ASUS Extreme Low Motion Blur Sync (ELMB SYNC) for reduced ghosting and tearing.
- Wide color gamut with advanced gray-scale tracking for smooth color gradation.
- DisplayWidget Center enables convenient monitor settings adjustments via mouse.
- USB Type-C with DisplayPort Alt mode for simplified connectivity.
- G-SYNC Compatible for a tear-free gaming experience.
Setup
What's in the Box:
Image: Contents of the ASUS ROG Strix XG259CMS monitor box. Includes the monitor, DisplayPort cable, power adapter, power cord, quick release stand, quick start guide, ROG pouch, ROG sticker, and warranty card.
- ASUS ROG Strix XG259CMS Gaming Monitor
- DisplayPort Cable
- Power Adapter
- Power Cord
- Quick Release Stand
- Quick Start Guide
- ROG Pouch
- ROG Sticker
- Warranty Card
Assembly and Ergonomics:
Follow the instructions in the Quick Start Guide for physical assembly of the stand and monitor. The monitor features an ergonomic design allowing for tilt, swivel, pivot, and height adjustments to optimize your viewing comfort.
Image: The monitor's ergonomic design allows for various adjustments to achieve optimal viewing angles and comfort.
Connectivity:
The monitor features a USB Type-C port with DisplayPort Alt mode, allowing for a single-cable solution for video, data, and power delivery with compatible devices. Connect your PC or other devices using the provided DisplayPort cable or an HDMI cable (not included).
Image: Rear view of the monitor highlighting versatile connectivity options including HDMI, DisplayPort, and USB-C ports.
Operating Instructions
Power On/Off:
Press the power button located on the monitor to turn it on or off. The power indicator light will illuminate when the monitor is active.
On-Screen Display (OSD) Menu:
Navigate the OSD menu using the joystick and buttons on the rear of the monitor to adjust settings such as brightness, contrast, color, input selection, and gaming features.
DisplayWidget Center:
Image: The DisplayWidget Center software allows for easy adjustment of monitor settings directly from your computer.
Install the ASUS DisplayWidget Center software on your computer to easily adjust monitor settings with a mouse. This software provides intuitive control over GameVisual modes, GamePlus features, MultiFrame, and other system settings.
Gaming Features:
- Extreme Low Motion Blur Sync (ELMB SYNC): This technology works with variable refresh rates to eliminate ghosting and tearing, providing sharp gaming visuals at high frame rates.
- G-SYNC Compatible: Ensures a fluid, tear-free gaming experience by synchronizing the monitor's refresh rate with your GPU.
- AI-Powered Advantage: Features like Dynamic Crosshair and Dynamic Shadow Boost enhance gameplay by improving visibility in dark areas and providing aiming assistance.
Image: Visual demonstration of AI-Powered features like Dynamic Crosshair and Dynamic Shadow Boost, showing their effect on in-game visibility.
Maintenance
To ensure the longevity and optimal performance of your monitor, follow these maintenance guidelines:
- 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. Avoid using alcohol-based cleaners or harsh chemicals.
- 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 turn off and unplug the monitor before cleaning or when it will not be used for an extended period.
Troubleshooting
If you encounter issues with your monitor, refer to the following common troubleshooting steps:
- No Power:
- Check if the power cord is securely connected to the monitor and a power outlet.
- Verify the power adapter is functioning correctly.
- Ensure the power button on the monitor is pressed.
- No Signal:
- Confirm the video cable (DisplayPort, HDMI, or USB-C) is properly connected to both the monitor and your computer.
- Select the correct input source via the OSD menu.
- Ensure your computer's graphics card is functioning and drivers are updated.
- Image Issues (Flickering, Blurry, Incorrect Colors):
- Adjust resolution and refresh rate settings on your computer.
- Check cable connections for looseness or damage.
- Reset monitor settings to factory defaults via the OSD menu.
- Enable ASUS Eye Care features to reduce flicker and blue light.
Video: This video from ASUS explains the benefits of ASUS Eye Care technology, which helps reduce eye strain from glare, blue light, and flicker, promoting better eye health during extended use.
Specifications
| Feature | Detail |
|---|---|
| Brand | ASUS |
| Model Number | XG259CMS |
| Screen Size | 24.5 Inches |
| Resolution | FHD 1080p (1920 x 1080 Pixels) |
| Refresh Rate | 310 Hz |
| Response Time | 1 Millisecond (GTG) |
| Display Type | LED, Fast IPS |
| Aspect Ratio | 16:9 |
| Screen Surface | Matte |
| Color Gamut | 110% sRGB |
| Adaptive Sync | G-Sync Compatible |
| Connectivity | HDMI, USB-Type C, DisplayPort |
| Additional Features | Blue Light Filter, Eye Care, Flicker-Free, VESA DisplayHDR 400 |
| Item Weight | 12.3 Pounds |
| Mounting Type | Wall Mount (VESA compatible) |
Warranty and Support
Warranty Information:
This ASUS ROG Strix XG259CMS monitor comes with a 3-year warranty. Please refer to the included Warranty Card for detailed terms and conditions, including information on ASUS Rapid Replacement (ARR) service.
Customer Support:
For technical assistance, driver downloads, or further product information, please visit the official ASUS support website or contact their customer service. Keep your product's serial number handy for faster service.
Note: A 3-month Adobe Creative Cloud complimentary access is included with the purchase of this product (valid until 8/31/2026). Refer to the product packaging or included documentation for redemption details.
