The ASUS ROG Strix OLED XG27ACDMS is a 27-inch-class QHD gaming monitor built around a 26.5-inch viewable QD-OLED panel. Its 2560 × 1440 resolution, 280 Hz maximum refresh rate and 0.03 ms GTG response time combine high-speed gaming performance with the deep contrast and precise pixel-level control of OLED display technology. The display delivers true 10-bit color, 99% DCI-P3 coverage and Delta E ≤ 2 color accuracy, along with HDR10 and VESA DisplayHDR 400 True Black. ASUS OLED Care Pro with the Neo Proximity Sensor provides OLED protection features, while DisplayPort 1.4 DSC, HDMI 2.1 FRL and USB-C with DisplayPort Alt Mode provide flexible connectivity. Key Features QHD QD-OLED: 26.5-inch viewable panel with 2560 × 1440 resolution, anti-reflection surface and 1,500,000:1 typical contrast ratio. 280 Hz & 0.03 ms: High refresh rate and 0.03 ms GTG response time for fast, fluid gaming visuals. True 10-Bit Color: 99% DCI-P3 coverage with Delta E ≤ 2 color accuracy and 1.0737 billion display colors. OLED Care Pro: Includes the Neo Proximity Sensor, which can switch the display to a black screen when the user moves away to help reduce burn-in risk. Adaptive-Sync: Supports variable refresh rate and is G-SYNC Compatible and VESA AdaptiveSync Display 280Hz certified. Modern Connectivity: DisplayPort 1.4 DSC, HDMI 2.1 FRL and USB-C with DisplayPort Alt Mode and 15 W Power Delivery. Technical Specifications Component Specification ASUS ROG Model ROG Strix OLED XG27ACDMS Produ Type Gaming Monitor Panel Size 26.5 inches viewable Panel Type QD-OLED Resolution 2560 × 1440 (QHD) Aspe Ratio 16:9 Display Surface Anti-Reflection Refresh Rate Up to 280 Hz Response Time 0.03 ms (GTG) Brightness 250 cd/m² (Typical) HDR Peak Brightness 1,000 cd/m² Contrast Ratio 1,500,000:1 (Typical) Viewing Angle 178° horizontal / 178° vertical Color Gamut 99% DCI-P3 Color Accuracy Delta E ≤ 2 Color Depth 10-bit, 1.0737 billion colors HDR HDR10, VESA DisplayHDR 400 True Black VRR Adaptive-Sync, G-SYNC Compatible DisplayPort 1 × DisplayPort 1.4 DSC HDMI 1 × HDMI 2.1 (FRL) USB-C 1 × USB-C (DisplayPort Alt Mode) USB-C Power Delivery 15 W OLED Protection ASUS OLED Care Pro, Neo Proximity Sensor Stand Adjustment Height 0–110 mm, Tilt +20° to -5°, Swivel ±45°, Pivot ±90° VESA Mount 100 × 100 mm Tripod Socket 1/4 inch Dimensions with Stand 609 × 449 × 188 mm Net Weight with Stand 6.1 kg Compatibility & Important Information The USB-C connection supports DisplayPort Alt Mode and up to 15 W Power Delivery. Video connectivity also includes DisplayPort 1.4 with DSC and HDMI 2.1 FRL. ASUS OLED Care Pro includes the Neo Proximity Sensor, which detects when the user moves away and can transition the display to a black screen to help reduce OLED burn-in risk. OLED Care functions can be accessed through ASUS DisplayWidget Center. The monitor supports Adaptive-Sync and is G-SYNC Compatible and VESA AdaptiveSync Display 280Hz certified. Its ergonomic stand provides height, tilt, swivel and pivot adjustment, with 100 × 100 mm VESA mounting and a 1/4-inch tripod socket also available. Monitors Specifications Screen Size 26.5" Refresh Rate 280 Hz Panel Type Panel Technology OLED Contrast Ratio Static 1500000:1 Resolution 2560 x 1440 Response Time 0.03 ms Adaptive Sync Technology G-SYNC Compatible Built In Speakers Display Port Yes HDMI Yes Brightness 1000 cd/m2 Display Colors 1073.7M (10 bit) Please to review Q: What resolution and refresh rate does the ROG Strix OLED XG27ACDMS support? A: It has a 2560 × 1440 QHD QD-OLED panel with a maximum refresh rate of 280 Hz. Q: What is the response time? A: ASUS specifies a 0.03 ms GTG response time. Q: Does the XG27ACDMS support HDR? A: Yes. It supports HDR10, has up to 1,000 cd/m² HDR peak brightness and is VESA DisplayHDR 400 True Black compliant. Q: Does it support NVIDIA G-SYNC? A: Yes. The monitor supports Adaptive-Sync and is G-SYNC Compatible and VESA AdaptiveSync Display 280Hz certified. Q: What does ASUS OLED Care Pro do? A: ASUS OLED Care Pro provides OLED protection functions. Its Neo Proximity Sensor can dete when the user moves away and transition the display to a black screen to help reduce burn-in risk. Q: Does the USB-C port support video and charging? A: Yes. USB-C supports DisplayPort Alt Mode for compatible source devices and provides up to 15 W Power Delivery. Q: What video inputs are available? A: The monitor provides one DisplayPort 1.4 DSC input, one HDMI 2.1 FRL input and one USB-C connection with DisplayPort Alt Mode. Q: Can the monitor be VESA mounted? A: Yes. It supports 100 × 100 mm VESA mounting and also includes a 1/4-inch tripod socket.