ASUS ROG Strix OLED XG27ACDMSUK manufacturer specification · ROG Strix OLED XG27ACDMS- Refresh rate at native resolution
- 280 HzThis one: 240 Hz
26.5-inch QD - OLED · UK specification
A 26.5-inch QD - OLED monitor with a 2560 × 1440 panel and a listed 240 Hz native-resolution mode. Its specified depth with stand is 190.5 mm.

Specifications checked 27 Sept 2026Manufacturer specifications, not a hands-on test.
The 2560 × 1440 panel supports a listed 240 Hz native-resolution mode. Check the input-specific conditions alongside the figures.
The listed 100x100 VESA pattern gives a mounting option when the mount also meets the monitor’s weight and screw requirements.
Response time, HDR support and colour figures are manufacturer claims with different conditions; they do not establish independent motion or image-quality results.
Allow for the 190.5 mm listed depth with the supplied stand, plus cable clearance. Check desk depth before choosing this size.
The inspected table does not verify height adjustment. Confirm the stand’s adjustment range if fixed screen height would be a problem.
Exact configuration: Q27G41ZDF · 26.5-inch QD - OLED · AOC UK specification
45 specifications in 10 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”. 2 rows repeat listed facts in the manufacturer’s own wording, kept under “Manufacturer wording”.
Manufacturer-listed panel diagonal; a rounded size may appear in the product name.
SourceManufacturer resolution notation: 2560x1440. See the separate refresh-mode conditions for any lower-resolution configurations.
SourceManufacturer panel designation; technology alone does not establish tested image quality.
SourceAt the native panel resolution. Manufacturer lists 240 Hz. Available modes depend on input, cable and source.
SourceManufacturer response-time claim; settings and transition method matter. GtG and MPRT values are different measures and are not independent motion-clarity results.
SourceNeeds a compatible source device, input and driver; console VRR support varies.
SourceThe same facts in the manufacturer’s combined or original wording, each with its source.
At the native panel resolution. Manufacturer lists 240 Hz. Available modes depend on input, cable and source.
SourceThe model page lists 400 cd/m² under Brightness in nits, without identifying typical sustained output, peak window size or a measurement mode. The previous typical-brightness wording was unsupported.
SourceAOC does not state the window size or whether this is sustained or peak brightness.
SourceManufacturer-listed HDR formats or certification. This alone does not establish real-scene HDR quality, local dimming or measured peak brightness.
SourceManufacturer colour specification under its stated colour space and measurement basis. Coverage and gamut volume are not interchangeable, and this is not an independent colour-accuracy measurement.
SourceManufacturer colour specification under its stated colour space and measurement basis. Coverage and gamut volume are not interchangeable, and this is not an independent colour-accuracy measurement.
SourceManufacturer colour specification under its stated colour space and measurement basis. Coverage and gamut volume are not interchangeable, and this is not an independent colour-accuracy measurement.
SourceThe inspected exact-model specification does not establish this feature. It has not been inferred from another model or from an omitted field.
SourceManufacturer port counts and versions. Confirm source-device support, cable bandwidth and the exact mode; a connector name alone does not guarantee every advertised configuration.
SourceNo positive charging-output rating is established in the inspected specification.
SourceAOC advertises a Low Input Lag mode; no latency figure is published.
SourceThe inspected exact-model specification does not establish this feature. It has not been inferred from another model or from an omitted field.
SourceMatch the screw pattern, screw dimensions, product weight and mount load rating; the pattern alone does not verify a safe mount.
SourceManufacturer dimensions in the stated orientation; allow additional room for cables and movement. A listed height range is retained without inferring an adjustment travel.
SourceDepth from the manufacturer dimension tuple. Allow additional room for cable routing and movement.
SourceManufacturer width in the listed landscape configuration.
SourceNet product weight with the supplied stand or arm; packaging excluded.
SourceManufacturer dimensions in the stated orientation; allow additional room for cables and movement. A listed height range is retained without inferring an adjustment travel.
SourceManufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ. Source mode: typical.
SourceManufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ.
SourceThe same facts in the manufacturer’s combined or original wording, each with its source.
Manufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ.
SourceThe inspected exact-model specification does not establish this feature. It has not been inferred from another model or from an omitted field.
SourceBurn-in cover applies when screen maintenance follows AOC's instructions; check the purchase market and full terms.
SourcePackage contents describe the inspected regional specification; confirm the exact retailer bundle.
SourceUK and US retailer searches are provided separately. A UK specification does not prove identical US variants, included plugs, stock or cross-border warranty.
SourceMore of the nearest checked monitors by key specifications, for a side-by-side comparison.
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