Overview
The ASUS ROG Strix XG27ACMES is a 27-inch gaming monitor designed for competitive PC gaming and detailed everyday visuals. Its Fast IPS panel delivers QHD resolution of 2560 × 1440, with a maximum refresh rate of 255Hz and a 1ms gray-to-gray response time.
Adaptive-Sync, AMD FreeSync Premium, NVIDIA G-SYNC Compatible support, and ELMB Sync help reduce screen tearing and motion blur. HDR10 and VESA DisplayHDR 400 support provide HDR capability, while the panel's specified 133% sRGB and 97% DCI-P3 color-space coverage support vibrant color reproduction. Connectivity includes DisplayPort 1.4, HDMI 2.1, and USB-C with DisplayPort Alt Mode and 15W power delivery.
Key Features
27-inch QHD Fast IPS panel with 2560 × 1440 resolution
Up to 255Hz refresh rate for responsive competitive gaming
1ms GTG response time with ELMB Sync motion technology
DisplayHDR 400, HDR10, and 97% DCI-P3 color coverage
DisplayPort 1.4, HDMI 2.1, and USB-C with 15W power delivery
Technical Specifications
| Specification | Details |
|---|
| Brand | ASUS |
| Part Number | XG27ACMES |
| Product Type | ROG Strix gaming monitor |
| Screen Size | 27 inches |
| Panel Type | Fast IPS |
| Resolution | 2560 × 1440 (QHD) |
| Aspect Ratio | 16:9 |
| Maximum Refresh Rate | 255Hz |
| Response Time | 1ms GTG; 0.3ms minimum |
| Brightness | 350 cd/m² typical |
| HDR Peak Brightness | 400 cd/m² |
| Contrast Ratio | 1300:1 typical |
| Color Gamut | 133% sRGB; 97% DCI-P3 |
| Display Colors | 1.07 billion |
| Viewing Angle | 178° horizontal / 178° vertical |
| HDR Support | HDR10; VESA DisplayHDR 400 |
| Adaptive-Sync | Yes |
| Synchronization Support | AMD FreeSync Premium; NVIDIA G-SYNC Compatible |
| Motion Technology | ELMB Sync |
| Video Inputs | 1 × DisplayPort 1.4 (HBR3); 1 × HDMI 2.1; 1 × USB-C with DisplayPort Alt Mode |
| USB-C Power Delivery | 15W |
| Built-in Speakers | No |
| Audio Output | Headphone jack |
| Height Adjustment | 0–110mm |
| Tilt Adjustment | -5° to +20° |
| Swivel Adjustment | -45° to +45° |
| Pivot Adjustment | -90° to +90° |
| VESA Mounting | 100 × 100mm |
| Power Consumption | Less than 21W (specified) |
| Dimensions with Stand | Approximately 614.8 × 503.4 × 187.9mm at maximum height |
| Dimensions without Stand | Approximately 614.8 × 367.1 × 63mm |
| Weight with Stand | Approximately 5.96kg |
| Weight without Stand | Approximately 3.87kg |
Product Note
The 255Hz maximum refresh rate is supported through DisplayPort, HDMI, and USB-C according to ASUS's signal-frequency specifications. Actual refresh-rate availability depends on the connected hardware, cable, resolution, and configuration. USB-C supports DisplayPort Alt Mode and up to 15W power delivery; it is not a substitute for a high-wattage laptop charger. The monitor has no built-in speakers. Confirm regional specifications, included accessories, warranty, and availability before purchase.
Frequently Asked Questions
What resolution does the ASUS XG27ACMES support?
It supports QHD resolution at 2560 × 1440 pixels.
What is the maximum refresh rate?
The monitor supports a maximum refresh rate of 255Hz.
Is the XG27ACMES suitable for competitive gaming?
Yes. Its 255Hz refresh rate, Fast IPS panel, 1ms GTG response time, ELMB Sync, and variable refresh rate support are designed for responsive gameplay.
Does it support AMD FreeSync and NVIDIA G-SYNC?
Yes. ASUS lists AMD FreeSync Premium and NVIDIA G-SYNC Compatible support.
Can I connect a laptop using USB-C?
Yes, if the laptop's USB-C port supports DisplayPort Alt Mode. The monitor supplies up to 15W of power, so most laptops will require a separate charger.
Does it support monitor arms and ergonomic adjustment?
Yes. It supports 100 × 100mm VESA mounting, with stand adjustments for height, tilt, swivel, and pivot.
