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27 inch black flat monitor on adjustable stand, anti-reflection screen

ASUS

ASUS 90LM04N0-B013B2 ProArt 27" 4K QD-OLED 240Hz monitor

SKU CH-W71Y-8W665 MPN 90LM04N0-B013B2

A 26.5-inch 4K QD-OLED panel delivering 240Hz refresh, 0.1ms response, 99% DCI-P3 colour and built-in self-calibration for professional colour-critical work

  • Screen size27 in (26.5 in viewable)
  • Display resolution3840 × 2160 (4K)
  • Refresh frequency240 Hz
  • Panel typeQD-OLED
  • Pixel response time0.1 ms (GTG)
  • Power draw<32 W Power Saving Mode : <0.5 W Power Off Mode : 0 W (hard
  • True 10-bit color covers 99% DCI-P3 for accurate grading
  • 240Hz refresh and 0.1ms response give smooth motion handling
  • Integrated colorimeter enables self-calibration for lasting accuracy
  • Dual Thunderbolt 4 ports deliver up to 96W power
  • 12G SDI supports 4K 60Hz uncompressed video playback

ProArt 27" 4K QD-OLED

The ASUS ProArt PA27USD is a 26.5-inch 4K UHD professional monitor built on a QD-OLED panel. It targets colour-critical workflows in video post, design and photography where reference-grade accuracy matters. A 240 Hz refresh rate and 0.1 ms GTG response also suit high-frame-rate preview work.

Integrated colorimeter and 12G SDI

An on-board motorised colorimeter enables self and auto calibration with profile write-back, keeping Delta E below 1 over time without external probes. The 12G SDI input carries 4K at 60 Hz uncompressed and remains compatible with 6G and 3G Level A and B signals for broadcast pipelines.

Thunderbolt 4 hub and ergonomic stand

Dual Thunderbolt 4 ports deliver up to 96 W power delivery while functioning as a USB 3.2 Gen 2 hub for peripherals. The stand provides height, tilt, swivel and pivot adjustment, and a 100 x 100 mm VESA pattern allows arm or wall mounting when desk space is limited.

How it compares

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

Price $1,559.99
Pricier than about 93% of the 530 comparable items (median $193.49).
Screen size 27 in (26.5 in viewable)
Typical for this category: the median of 479 items is 27 in.
Refresh frequency 240 Hz
Higher than about 99% of the 303 comparable items (median 100 Hz).

Specifications

Product
Brand nameASUS
Product lineProArt
Model namePA27USD
Case colorBlack
Display
Screen size27 in (26.5 in viewable)
Display resolution3840 × 2160 (4K)
Refresh frequency240 Hz
Panel typeQD-OLED
Pixel response time0.1 ms (GTG)
Image brightness250 cd/m2
Screen curvatureFlat Panel
Screen finishAnti-Reflection
Widescreen formatYes
Viewing angles178° (H) / 178° (V)
Pixel pitch0.155 mm
Colors displayed1.07 Billion
Contrast1,500,000:1
Screen ratio16:9
Color gamut coverage100% sRGB, 99% DCI-P3
Variable refresh rateAdaptive Sync
Audio & video
Integrated speakers2 × 2 W
Integrated webcamNo
Ports & slots
Video connectors1 × 12G-SDI / 1 x DisplayPort 2.1 / 2 x HDMI 2.1 / 2 x Thunderbolt 4
USB connections1 x USB Type-C / 2 x USB 3.2 Gen 2 Type-A
Headphone jack1
Power
Power draw<32 W
Power Saving Mode : <0.5 W
Power Off Mode : 0 W (hard switch)
Power supply100–240 VAC, 50/60 Hz
Size & build
Stand adjustabilityHeight, Pivot, Swivel, Tilt
VESA mounting pattern100 × 100 mm
Product dimensions23.03 in × 24.03 in × 9.44 in with stand
14.91 in × 24.03 in × 23.46 in without stand
Product weight16.53 lb with stand
10.93 lb without stand
Shipping weight15.10 kg
Package size884 × 685 × 196 mm

Questions about this item

How often will the integrated colorimeter need to run self-calibration to keep Delta E below 1?

The built-in colorimeter handles self-calibration automatically; no user schedule is required to maintain factory-verified accuracy.

What brightness ceiling appears first during a full-day HDR grading session?

Sustained full-screen output is rated at 250 cd/m2, while 1000 nits peak is only available for small highlight areas.

How loud do the cooling fans get after eight hours at 240 Hz?

The monitor runs fanless; total power draw stays under 32 W so heat is dissipated silently through the chassis.

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