ASUS ProArt Display OLED PA27USD — self-calibrating 4K QD-OLED at 240Hz
4K QD-OLED 240HzBuilt-in colorimeter2x Thunderbolt 4Dolby Vision · HLG
The ASUS ProArt Display OLED PA27USD is a 27-inch class (26.5") 4K UHD QD-OLED professional monitor with a built-in colorimeter for self-calibration, ΔE under 1 accuracy, a 240Hz refresh rate and two Thunderbolt 4 ports — a reference-grade screen for colourists, video editors and high-end creative studios.
The integrated colorimeter lets the monitor recalibrate itself on schedule, keeping colour accurate over its life without an external probe; it also supports hardware calibration and is Calman Ready. The QD-OLED panel delivers 99% DCI-P3 and 100% sRGB in 10-bit, 1,500,000:1 contrast, VESA DisplayHDR 400 True Black, Dolby Vision, HLG and HDR10. Connectivity is extensive: two Thunderbolt 4 ports with daisy chain, DisplayPort 2.1, two HDMI 2.1, a USB 3.2 Gen2 hub and KVM.
Before you order: This is a professional reference tool; its value is in calibration and connectivity. For general office use it is far more than you need. Typical SDR brightness is 250 cd/m², as with other QD-OLED monitors.
What's in the Box
- ASUS ProArt PA27USD monitor
- Ergonomic stand and mini stand
- Monitor hood
- Thunderbolt 4 cable
- USB-C cable and USB-C to A cable
- DisplayPort 2.1 cable
- HDMI Ultra High Speed cable
- Power cord
- L-shaped screwdriver and cable clip
- Pre-calibration report, quick start guide and warranty card
What It Means in Practice
- Schedule self-calibration with the built-in colorimeter and keep grading accuracy without an external probe.
- Thunderbolt 4 connects a Mac or PC workstation with one cable and daisy-chains a second Thunderbolt display.
- The included monitor hood blocks side light for critical colour work.
- At 240Hz, timelines, scrubbing and UI feel noticeably smoother than on 60Hz reference displays.
What Will Not Work
- Not intended as a budget gaming monitor — its price reflects professional calibration features.
- Very bright rooms reduce OLED contrast advantages; use the hood and controlled lighting.
- No support for higher-than-4K resolutions.
- USB-C power delivery wattage per port is not detailed by ASUS beyond the 96W total.
Key Features
Built-in colorimeter
Self-calibration and hardware calibration, ΔE < 1, Calman Ready.
4K QD-OLED 240Hz
26.5" 4K, 0.1ms GtG, 99% DCI-P3, 1,500,000:1 contrast.
Pro HDR
DisplayHDR 400 True Black, Dolby Vision, HLG and HDR10.
Thunderbolt 4 x2
Daisy chain, DP 2.1, 2x HDMI 2.1, USB 3.2 Gen2 hub and KVM.
Technical Specifications
| Identification |
| Part Number |
90LM04N0-B01371 |
| EAN / GTIN |
4711636229470 |
| Brand |
ASUS |
| Model |
ProArt Display OLED PA27USD |
| Display |
| Screen size |
26.5" (27" class), 16:9 |
| Panel |
QD-OLED, anti-reflection |
| Resolution |
3840 x 2160 (4K UHD) |
| Refresh rate |
240Hz |
| Response time |
0.1ms GtG |
| Brightness |
250 cd/m² typical · 1000 cd/m² HDR peak |
| Contrast |
1,500,000:1 |
| Colour gamut |
99% DCI-P3 · 100% sRGB · 10-bit |
| Calibration |
Built-in colorimeter · hardware calibration · ΔE < 1 · Calman Ready |
| HDR |
VESA DisplayHDR 400 True Black · Dolby Vision · HLG · HDR10 |
| Eye care |
TÜV Low Blue Light · Flicker-free · OLED Care |
| Connectivity |
| Video inputs |
2x Thunderbolt 4 (daisy chain) · 1x DisplayPort 2.1 · 2x HDMI 2.1 (FRL) |
| USB-C power delivery |
96W |
| USB hub |
1x USB-C + 2x USB-A (USB 3.2 Gen2) · USB-C upstream for KVM |
| KVM |
Yes |
| Audio |
Earphone jack · 2x 2W speakers |
| Ergonomics & mounting |
| Height adjustment |
0–130 mm |
| Tilt / swivel / pivot |
+23° / -5° · ±30° · ±90° |
| VESA |
100 x 100 mm |
| Power & physical |
| Power consumption |
< 32W |
| Dimensions with stand |
610 x 585 x 240 mm |
| Weight |
7.5 kg with stand |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
3 years including panel burn-in per ASUS — claims handled through Singular |
Frequently Asked Questions
Do I need an external calibration probe?
No — the built-in colorimeter handles self-calibration; hardware calibration and Calman are also supported.
Can I daisy-chain another display?
Yes, via the second Thunderbolt 4 port.
Is burn-in covered?
ASUS lists a 3-year warranty including panel burn-in for this model.
Singular Expert Insight · Buyer's Guide
The PA27USD is a reference-class OLED for studios: self-calibration, Dolby Vision and dual Thunderbolt 4 in one 27-inch screen, with 240Hz smoothness as a bonus. If you do not need the colorimeter or Thunderbolt, the PA279CDV covers most creator desks for less. See all our
PC monitors.
✓ Buy it if you grade colour or video professionally and want a self-calibrating 4K OLED with Thunderbolt 4.
✕ Skip it if you need a general office or gaming screen — simpler models give better value.
→ Also consider the ASUS ProArt PA279CDV for calibrated QD-OLED with USB-C 96W at a lower price.
Planning a grading or design workstation? Send us your system and software and we will confirm cabling and calibration workflow before you order.