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Black 27-inch flat QD-OLED gaming monitor with thin bezels and a sturdy stand

ASUS

ASUS ROG Strix XG27ACDMS 27" 2K QD-OLED 280Hz 0.03ms gaming monitor

SKU CH-V0GT-ETBCR

A 27-inch QD-OLED panel delivers 2560 x 1440 resolution at 280Hz with a .03ms response time, G-Sync and FreeSync Premium Pro support, plus VESA DisplayHDR 400 True Black certification

  • Screen size27 in (68.6 cm)
  • Display resolution2560 × 1440 (2K)
  • Refresh frequency280 Hz
  • Panel typeQD-OLED
  • Pixel response time0.03 ms
  • Variable refresh rateFreeSync Premium Pro & G-Sync Compatible
  • Ultra-smooth motion with a 280 Hz refresh rate
  • Instant pixel response at 0.03 ms for zero blur
  • Vivid QD-OLED colour backed by 1,500,000:1 contrast
  • True black HDR certified to 400 nits peak brightness
  • Wide 178-degree viewing angles on a 27-inch 2K panel

27-inch QD-OLED for competitive gaming

The ASUS ROG Strix XG27ACDMS is a 27-inch QD-OLED panel built for competitive gaming. It targets players who need a 280 Hz refresh rate and a 0.03 ms response time at 2560 x 1440 resolution. The display covers both G-SYNC Compatible and FreeSync Premium Pro adaptive sync standards. HDR 10 and VESA DisplayHDR 400 True Black certification are included.

Upgrade from standard IPS or 144 Hz panels

This monitor replaces conventional IPS screens limited to 144 Hz or slower pixel response. The jump is worth it when motion clarity and near-instant pixel transitions matter more than static image quality. QD-OLED delivers a 1,500,000:1 contrast ratio and 1000 cd/m² peak brightness that typical LCDs cannot match. Buyers who need higher pixel density or larger screen area should look elsewhere.

Limits of DisplayPort 1.4 and HDMI 2.1 bandwidth

The single DisplayPort 1.4 and HDMI 2.1 inputs cap the signal at 2560 x 1440 280 Hz with 10-bit colour. Driving higher resolutions or refresh rates would require a newer interface revision not present on this model. USB display connection is offered as an alternative path but shares the same bandwidth ceiling. The 178-degree viewing angles remain consistent across both video inputs.

How it compares

Measured against everything we stock in Monitors for Gamers, at today’s prices. Recalculated every night.

Price $620.99
Pricier than about 90% of the 839 comparable items (median $189.99).
Screen size 27 in (68.6 cm)
Typical for this category: the median of 814 items is 27 in.
Refresh frequency 280 Hz
Higher than about 87% of the 735 comparable items (median 180 Hz).

Specifications

Product
Brand nameASUS
Product lineROG Strix
Case colorBlack
Display
Screen size27 in (68.6 cm)
Display resolution2560 × 1440 (2K)
Refresh frequency280 Hz
Panel typeQD-OLED
Pixel response time0.03 ms
Variable refresh rateFreeSync Premium Pro & G-Sync Compatible
Highest resolution2560 × 1440
Ports & slots
Connection typesHDMI, DisplayPort, USB
HDMI ports1 x HDMI 2.1
DisplayPort connectors1 x DisplayPort 1.4
Video connectors1 x DisplayPort 1.4

Questions about this item

What VESA mount pattern does the 27-inch monitor use?

The monitor supports a 100 x 100 mm VESA mount for wall or arm installation.

Which cable must be used to reach the 280 Hz refresh rate at 2560 x 1440?

Use the DisplayPort 1.4 cable; HDMI 2.1 is limited to lower refresh rates at this resolution.

How should the QD-OLED panel be cleaned to avoid coating damage?

Gently wipe with a dry microfibre cloth; never use liquid cleaners or abrasive materials on the screen.

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