We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
27 inch black flat OLED gaming monitor on height adjustable stand

Acer America

Acer America UM.GXXAA.501 Predator X27U 27" 2560x1440 500Hz OLED gaming monitor

SKU CH-M9WN-77XK3 MPN UM.GXXAA.501

A 27 inch OLED gaming monitor with 2560 x 1440 resolution, 500Hz refresh rate and 0.03 ms response time

  • Cabinet ColorBlack
  • Screen Size27"
  • Glare ScreenYes
  • LED BacklightNo
  • PanelOLED
  • Adaptive Sync TechnologyFreeSync Premium Pro

Option 27” OLED WQHD 500Hz

  • Ultra-smooth motion with a 500Hz refresh rate
  • Near-instant pixel response at 0.03ms for zero ghosting
  • Deep blacks and vivid contrast from 1,500,000:1 OLED panel
  • True-to-life colour covering 99% DCI-P3 gamut
  • Ergonomic flexibility via height, swivel, pivot and tilt adjustments

27 inch 500Hz OLED monitor for competitive play

This 27 inch OLED panel runs at 2560 x 1440 with a 500Hz refresh rate and a 0.03ms response time. It targets competitive players who need the lowest possible motion blur and input lag. FreeSync Premium Pro provides adaptive sync across the full range. The flat screen covers 99% DCI-P3 and reaches 1000 cd/m2 peak brightness.

Sustained brightness and heat management

OLED pixels emit their own light so no backlight dimming occurs during long sessions. The 1,500,000:1 contrast ratio stays constant because each pixel switches off completely. Peak brightness of 1000 cd/m2 is available for HDR highlights without a time limit. The panel maintains 99% DCI-P3 coverage at all luminance levels.

500Hz refresh rate at 1440p resolution

The single specification that decides fit is the 500Hz refresh rate paired with 2560 x 1440 resolution. Buyers who need 4K detail or a wider ultrawide format will not be served by this panel. Systems that cannot sustain high frame rates at 1440p will not use the full capability. The 0.03ms response time only matters when the GPU delivers frames at that pace.

Highlights

  • Ultra-smooth motion with a 500Hz refresh rate
  • Near-instant pixel response at 0.03ms for zero ghosting
  • Deep blacks and vivid contrast from 1,500,000:1 OLED panel
  • True-to-life colour covering 99% DCI-P3 gamut
  • Ergonomic flexibility via height, swivel, pivot and tilt adjustments

Specifications

BrandAcer
SeriesPredator
ModelX27U F5bmiippruzx
Part NumberUM.GXXAA.501
Cabinet ColorBlack
Screen Size27"
Glare ScreenYes
LED BacklightNo
PanelOLED
Adaptive Sync TechnologyFreeSync Premium Pro
Resolution2560 x 1440 (2K)
Viewing Angle178° (H) / 178° (V)
Aspect Ratio16:9
Brightness1000 cd/m2
Contrast Ratio1,500,000:1
Response Time0.03 ms
Color GamutDCI-P3 99%
Display Colors1.07 Billion
Monitor Pixel Density0.229mm
Refresh Rate500Hz
Curved Surface ScreenFlat Panel
HDMI2 x HDMI 2.1
DisplayPort2 x DisplayPort 1.4
Video Ports1 x USB-C (DP Alternative) / 2 x DisplayPort 1.4 / 2 x HDMI 2.1
USB Ports1 x USB Type-C
Stand AdjustmentsHeight, Pivot, Swivel, Tilt
Built-in Speakers2 x 5W
Built-in WebcamNo
VESA Compatibility - Mountable75 x 75mm
Dimensions24.04"x21.50"~16.77"x12.32"
Weight12.21 lbs
Shipping weight9.89 kg
Package size845 × 483 × 165 mm

Other versions of this model

4 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the 500 Hz OLED panel run hot or draw much power during all-day sessions?

The panel is rated at 1000 cd/m2 peak brightness with a 1,500,000:1 contrast ratio, and the OLED design means no LED backlight is present, which typically limits sustained heat output compared to high-brightness LCDs.

Which cables and GPU ports do I need to actually hit 2560 x 1440 at 500 Hz?

You need a graphics card with DisplayPort 1.4 or HDMI 2.1 output and a matching certified cable; the monitor provides two DisplayPort 1.4 and two HDMI 2.1 inputs for that connection.

Will my older GPU that only has HDMI 1.4 and DisplayPort 1.2 still drive this screen at 1440p?

Yes, the monitor will accept the signal, but the 500 Hz refresh rate requires DisplayPort 1.4 or HDMI 2.1 bandwidth; older ports will fall back to lower refresh rates at 2560 x 1440.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.