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27 inch black gaming monitor with blue-green and pink Hatsune Miku accents on adjustable stand

ASUS

ASUS XG27ACMEG-G 27" 2560 x 1440 260Hz gaming monitor

SKU CH-KQ25-G2QZ1 MPN XG27ACMEG-G

A 27-inch QHD Fast IPS panel reaches a 260 Hz refresh rate and a 0.3 ms minimum response time with FreeSync Premium and G-Sync Compatible support

  • Screen size27 in (68.6 cm)
  • Display resolution2560 × 1440 (2K)
  • Refresh frequency260 Hz
  • Panel typeFast IPS
  • Pixel response time1 ms(GTG), 0.3 ms(min.)
  • BacklightLED
  • Sharp motion clarity from 260Hz refresh rate
  • Crisp detail at 2560 x 1440 QHD resolution
  • Smooth tear-free play via FreeSync Premium & G-Sync Compatible
  • Flexible ergonomics with 110mm height, swivel, pivot and tilt
  • Clean single-cable hook-up through USB Type-C with DP Alt mode

27-inch QHD 260Hz gaming monitor

The ASUS XG27ACMEG-G is a 27-inch Fast IPS display with a 2560 x 1440 resolution and a 260Hz overclocked refresh rate. It targets competitive players who need low-latency motion clarity at QHD detail levels. The panel covers 1.073 billion colours and reaches 400 cd/m2 brightness with VESA DisplayHDR 400 certification. Anti-glare coating and 178-degree viewing angles suit long sessions.

Upgrade from 144Hz or 60Hz panels

Moving from a standard 60Hz or 144Hz screen to 260Hz cuts frame time dramatically, making motion tracking and target acquisition smoother in fast-paced titles. The 0.3ms minimum response time and ELMB SYNC reduce ghosting while variable refresh rate remains active. The jump is worth it when your GPU can sustain frame rates well above 144fps at 2560 x 1440. At lower frame outputs the advantage shrinks.

Practical limits of DisplayPort 1.4 and HDMI 2.1

The monitor provides one DisplayPort 1.4 and one HDMI 2.1 input for video. DisplayPort 1.4 carries the full 260Hz refresh rate at 2560 x 1440 with 10-bit colour. HDMI 2.1 bandwidth caps 10-bit HDR at 144Hz unless display stream compression is used. USB Type-C with DP Alt Mode mirrors the DisplayPort 1.4 video limit. No audio output or built-in speakers are present.

How it compares

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

Price $425.99
Pricier than about 80% 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 260 Hz
Higher than about 83% of the 735 comparable items (median 180 Hz).

Specifications

Product
Brand nameASUS
Model nameXG27ACMEG-G
Part number90LM0C7U-B013B1
Case colorBlack
Display
Screen size27 in (68.6 cm)
Display resolution2560 × 1440 (2K)
Refresh frequency260 Hz
Panel typeFast IPS
Pixel response time1 ms(GTG), 0.3 ms(min.)
Image brightness400 cd/m2
Screen curvatureFlat Panel
Screen finishAnti-glare
BacklightLED
Display formatQHD
Variable refresh rateFreeSync Premium & G-Sync Compatible
Viewing angles178° (H) / 178° (V)
Screen ratio16:9
Contrast(HDR, Max) :100,000,000:1
Contrast Ratio (Typ.) : 1000:1
Colors displayed1.073 Billion
Pixel pitch0.233 mm
DisplayHDR certificationDisplayHDR 400
Audio & video
Integrated speakersNo
Integrated webcamNo
Ports & slots
HDMI ports1 x HDMI 2.1
DisplayPort connectors1 x DisplayPort 1.4
Video connectors1 x DisplayPort 1.4 / 1 x HDMI 2.1
USB connectionsUSB Type-C with DP Alt mode
Power
Power supply100–240 VAC, 50/60 Hz
Size & build
Stand adjustabilityTilt : Yes (+20° ~ -5°)
Swivel : Yes (+45° ~ -45°)
Pivot : Yes (+90° ~ -90°)
Height Adjustment : 0 to 110 mm
VESA mounting pattern100 × 100 mm
Shipping weight9.14 kg
Package size719 × 480 × 231 mm

Questions about this item

What VESA pattern does the 27" XG27ACMEG-G use for wall mounting?

The monitor has a 100 x 100mm VESA mount so any compatible arm or bracket with that spacing will fit.

How do I enable the 260Hz refresh rate on the XG27ACMEG-G?

Connect via the DisplayPort 1.4 or HDMI 2.1 port, select 260Hz in the OSD or GPU control panel, and use a certified cable that supports the bandwidth.

How long is the 400 cd/m² brightness rated to last on the XG27ACMEG-G?

The LED backlight is designed for long-term use at the specified 400 cd/m²; no user-replaceable parts are involved.

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