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A flat 27 inch black QD-OLED gaming monitor on a simple stand

AOC Monitors

AOC Monitors Q27G41ZDF 27" QD-OLED QHD 240Hz gaming monitor

SKU CH-K790-MQ8TS

A 27 inch QD-OLED gaming display with a 240Hz refresh rate, 0.03 ms response time and 2560 x 1440 resolution

  • Cabinet ColorBlack
  • Screen Size27"
  • PanelQD-OLED
  • Display TypeQHD
  • Adaptive Sync TechnologyNVIDIA G-Sync
  • Maximum Resolution2560 x 1440
  • QHD 2560 x 1440 resolution delivers sharp detail
  • 240 Hz refresh rate provides ultra-smooth motion
  • 03 ms response time eliminates ghosting
  • QD-OLED panel achieves 1,500,000:1 contrast
  • G-Sync adaptive sync prevents screen tearing

27-inch QD-OLED gaming display

The AOC Q27G41ZDF is a 27-inch QD-OLED gaming monitor built for competitive players who value motion clarity and deep contrast. Its 2560 x 1440 resolution and 240 Hz refresh rate suit fast-paced titles on Windows, Mac or Linux systems. The anti-glare surface and wide 178-degree viewing angles keep the image consistent in varied lighting.

0.03 ms response time

A 0.03 ms grey-to-grey response time is the specification that determines whether this panel matches your need for minimal ghosting. Combined with NVIDIA G-Sync adaptive sync, it aligns frame delivery to the GPU output for smooth motion. The single DisplayPort 1.4 and two HDMI 1.4 ports provide the necessary bandwidth for the native resolution at full refresh.

Sustained 240 Hz with OLED contrast

Under continuous load the 1,500,000:1 contrast ratio and 200 cd/m² brightness remain stable because each pixel emits its own light. The QD-OLED layer maintains colour volume without a backlight that can dim over long sessions. VESA 100 x 100 mounting lets you position the cabinet for extended comfort during marathon play.

Highlights

  • QHD 2560 x 1440 resolution delivers sharp detail
  • 240 Hz refresh rate provides ultra-smooth motion
  • 03 ms response time eliminates ghosting
  • QD-OLED panel achieves 1,500,000:1 contrast
  • G-Sync adaptive sync prevents screen tearing

Specifications

Cabinet ColorBlack
Screen Size27"
PanelQD-OLED
Display TypeQHD
Adaptive Sync TechnologyNVIDIA G-Sync
Maximum Resolution2560 x 1440
Resolution2560 x 1440 (2K)
Response Time0.03 ms
Refresh Rate240Hz
Horizontal Refresh Rate240 Hz
ConnectorsHDMI, DisplayPort
HDMI2 x HDMI 1.4
DisplayPort1 x DisplayPort 1.4
Video Ports1 x DisplayPort 1.4

Questions about this item

What does the 240 Hz refresh rate mean once the monitor is in a real machine?

It allows up to 240 frames per second to be shown, so fast motion stays clear and input feels immediate in supported games.

What does the DisplayPort 1.4 connection cap in practice?

The single DisplayPort 1.4 port carries the full 2560 x 1440 resolution at 240 Hz with G-Sync active.

What does the monitor physically need to fit or mount on a VESA arm?

It uses a 100 mm x 100 mm VESA pattern and the cabinet is black; the stand does not adjust height.

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