Display
26.5 in, QD-OLED, 3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p
26.5
Refresh Rate
48 Hz - 240 Hz
48 Hz
Brightness
250 cd/m²
250 cd
Contrast Ratio
1500000 : 1
1500000
Overview
The ASUS ROG Swift OLED PG27UCDM is a 3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p QD-OLED monitor rated for a 48 Hz - 240 Hz refresh range. On the response-time front, it’s specified at 0.03 ms GtG. On the picture-quality side, it’s specified at 250 cd/m² typical brightness, 1500000 : 1 contrast and 145 % sRGB coverage. Tearing is addressed through FreeSync, G-Sync, VESA AdaptiveSync Display 240Hz. For hookups, there’s 2x HDMI 2.1, 1x DisplayPort 2.1, 3x USB-A.
BrandASUSPanel TypeQD-OLEDResolution3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160pRefresh Rate48 Hz - 240 Hz
Key Highlights
- QD-OLED panel at 3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p
- 48 Hz - 240 Hz refresh range — built for competitive, fast-paced gaming
- 0.03 ms GtG response time
- 1500000 : 1 contrast ratio
- 250 cd/m² typical brightness
- 145 % sRGB colour coverage
- FreeSync, G-Sync, VESA AdaptiveSync Display 240Hz
- Connectivity: 2x HDMI 2.1, 1x DisplayPort 2.1, 3x USB-A
Who Should Buy the Asus ROG Swift OLED PG27UCDM
+ Best For
Premium PC gamers
4K, 240 Hz and 0.03 ms GtG target top-end systems
HDR format users
Dolby Vision, HDR10 and DisplayHDR 400 True Black are listed
USB-C work-and-play desks
video, data and up to 90 W power can share one cable
Multi-device setups
two HDMI 2.1 inputs and three USB Type-A ports are included
× Not Ideal For
Bright-room productivity
typical brightness is listed at 250 cd/m²
Speaker-dependent users
the monitor has no built-in speakers
Budget systems
4K at 240 Hz requires expensive graphics hardware
Buyers needing a complete DisplayPort specification
that part of the supplied port line is truncated
Display Performance
Refresh Rate
48 Hz - 240 Hz
High-refresh gaming range
Response Time
0.03 ms GtG
Manufacturer-published transition time
Brightness
250 cd/m²
Typical brightness as specified; peak figure not published
Contrast
1500000 : 1
Standard panel black depth
Colour Gamut
145 % sRGB
Standard game and web colour
Gaming Performance
Refresh Rate48 Hz - 240 HzHigh ceiling supports competitive frame rates
Response Time0.03 ms (GtG)Published claim without independent testing
VRR / Adaptive SyncFreeSync, G-Sync, VESA AdaptiveSync Display 240HzHelps reduce tearing on compatible GPUs
GPU Requirement3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p up to 240 HzHigh refresh ceiling needs a high-end GPU to fully utilise
HDR & Brightness Reality
This is credible HDR hardware by monitor standards. QD-OLED supplies per-pixel light control, while the sheet lists a 1,000 cd/m² peak, DisplayHDR 400 True Black, HDR10 and Dolby Vision. The limitation is 250 cd/m² typical brightness, so large bright scenes may look much less intense than small highlights. The sheet gives no test-window size or duration for the peak, so it should not be read as sustained full-screen output.
Connectivity & Ports
HDMI2x HDMI 2.1Published port count and version
DisplayPort1x DisplayPort 2.1Primary high-refresh PC connection
USB-CNot publishedNo one-cable laptop or charging function
USB Hub3x USB-A downstreamPeripherals can run through the screen
Audio Out3.5 mm audio out / headphone outExternal audio may still be preferred
Desk Fit & Ergonomics
Size / Footprint610.3 mm x 429.5 mm x 218.8 mm (W x H x D)Check desk width and depth before purchase
StandRemovable: YesA separate arm can replace the supplied base
VESA Mount100 x 100 mmUse a matching arm or wall mount
Tilt-5 ° to +20 ° / 1/4" Tripod SocketCovers the published forward and backward range
Height Adjust110 mm (4.33 in)Supports eye-level positioning
Swivel / Pivot±30 ° / ±90 °Supports shared angles and portrait rotation
Real-World Use Cases
240 Hz and 0.03 ms GtG target high-end PC systems
Dolby Vision and HDR10 join OLED black-level control
one connection can carry video, data and up to 90 W power
dual HDMI 2.1, DisplayPort and a three-port USB hub are listed
Pros & Cons
Pros
- 48 Hz 240 Hz refresh range with 0.03 ms GtG response is built for competitive, fast-paced gaming
- 1500000 : 1 contrast delivers near-infinite black depth
- FreeSync, G-Sync, VESA AdaptiveSync Display 240Hz give broad adaptive-sync compatibility
- 145 % sRGB coverage solid coverage for everyday colour accuracy
- Built-in USB hub adds convenient peripheral connectivity
- Stand offers 110 mm (4.33 in) height adjustment, swivel, pivot
- Backed by 3 years
- 165 ppi / 65 ppcm keeps text and UI edges crisp at normal desk distance
- OLED per-pixel dimming gives true blacks and instant pixel response
- KVM switch lets one keyboard/mouse control two connected PCs
- 100 x 100 mm VESA mount compatibility works with third-party arms and stands
- Low blue light and/or flicker-free modes support longer viewing comfort
- 3 combined HDMI/DisplayPort inputs support multiple sources
Cons
- No listed built-in speakers
- No energy-efficiency certification (e.g. ENERGY STAR, TCO) is listed
Score & Ratings
9.4/10
Great
Model Information
13
| Specification | Value |
|---|---|
| Brand | ASUS |
| Series | ROG Swift |
| Model | ROG Swift OLED PG27UCDM |
| Full Product Name | ASUS ROG Swift OLED PG27UCDM |
| Model Year | 2025 |
| Monitor Type | Gaming Monitor |
| Market Position | Premium / Flagship Gaming |
| Primary Use | Competitive Esports & High-End Immersive Gaming |
| Launch Status | 2025 |
| Available Colors | Black |
| Warranty | 3 years (36 months) standard limited warranty from date of purchase |
| Panel Warranty | 3 years |
| Burn-In Warranty | 3 years (36 months) OLED panel burn-in coverage on most models |
Display & Panel
16
| Specification | Value | What It Means |
|---|---|---|
| Screen Size | 26.5 in | |
| Exact Diagonal | 673.2 mm (26.50 in) | |
| Aspect Ratio | 16:9 | |
| Active Display Width | 589.97 mm (23.23 in) | |
| Active Display Height | 332.93 mm (13.11 in) | |
| Display Area | 87.17 % | |
| Panel Type | QD-OLED | QD-OLED affects viewing angles, black depth and color consistency — each panel technology trades these off differently. |
| Panel Technology | OLED | |
| Panel Manufacturer | Samsung | |
| OLED Technology | QD-OLED | |
| OLED Generation | 4th Gen QD-OLED | |
| Backlight Type | Self-emissive (no backlight — OLED) | |
| Self-Emissive Display | Yes | |
| Quantum Dot | Yes | |
| 3D Support | No | |
| Screen Coating | Glossy |
Resolution & Pixel Details
3
| Specification | Value | What It Means |
|---|---|---|
| Native Resolution | 3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p | |
| Pixel Density | 165 ppi / 65 ppcm | 165 ppi / 65 ppcm indicates how much scaling may be needed in the operating system for comfortable reading. |
| Pixel Pitch | 0.155 mm (0.01 in) |
Picture Quality & Color
14
| Specification | Value | What It Means |
|---|---|---|
| Panel Bit Depth | 10 bits | |
| FRC | No | |
| Display Colors | 1073741824 colors / 30 bits | |
| Typical Brightness | 250 cd/m² | |
| Peak Brightness | 1000 cd/m² | |
| Static Contrast Ratio | 1500000 : 1 | |
| Horizontal Viewing Angle | 178 ° | |
| Vertical Viewing Angle | 178 ° | |
| HDR Support | DisplayHDR 400 True BlackDolby VisionHDR10 |
|
| HDR10 | Yes | |
| Dolby Vision | Yes | |
| sRGB Coverage | 145 % | 145 % indicates how much of that color space the panel can reproduce, which affects color accuracy for photo/video work. |
| DCI-P3 Coverage | 99 % | |
| Gamma Adjustment | Yes |
Refresh Rate, Response & Gaming
12
| Specification | Value |
|---|---|
| Native Refresh Rate | 240 Hz |
| Refresh Rate Range | 48 Hz - 240 Hz |
| Minimum Response Time | 0.03 ms |
| Input Lag | 2.7 ms |
| AMD FreeSync | Yes |
| NVIDIA G-Sync | Yes |
| Motion Blur Reduction | Yes |
| Shadow Boost | Yes |
| GameFast Input | Yes |
| GameVisual | Yes |
| Picture-by-Picture | Yes |
| Picture-in-Picture | Yes |
Ports & Connectivity
16
| Specification | Value |
|---|---|
| HDMI Ports | 2 |
| HDMI Version | 2.1 |
| HDMI Bandwidth | 30 kHz - 590 kHz |
| DisplayPort Input | 1 |
| DisplayPort Version | 2.1 |
| DisplayPort Bandwidth | UHBR20 |
| USB-C Video Input | Yes |
| DisplayPort Alt Mode | Yes |
| HDCP Support | Yes |
| HDCP Version | 2.2 |
| USB-C Data Speed | 5 Gbps (USB 3.2 Gen 1) |
| USB-C Power Delivery | 90 W |
| USB-A Ports | 3 |
| KVM Switch | Yes |
| Audio Output | 3.5 mm |
| Headphone Output | 3.5 mm Audio Out |
Audio, Camera, Network & Smart Features
1
| Specification | Value |
|---|---|
| Built-In Camera | No |
Ergonomics & Stand
16
| Specification | Value | What It Means |
|---|---|---|
| VESA Mount | Yes | |
| VESA Size | 100 x 100 mm | |
| Removable Stand | Yes | |
| Height Adjustment | Yes | 110 mm (4.33 in) of travel allows the screen to be raised or lowered for a comfortable eye-level position. |
| Height Adjustment Range | 110 mm (4.33 in) | |
| Tilt Adjustment | Yes | |
| Forward Tilt | 5 ° | |
| Backward Tilt | 20 ° / 1/4" Tripod Socket | |
| Swivel Adjustment | Yes | |
| Left Swivel | 30 ° | |
| Right Swivel | 30 ° | |
| Left Pivot | 90 ° | |
| Right Pivot | 90 ° | |
| Portrait Mode | Yes | |
| Security Lock | Yes | |
| Anti-Theft Lock | Kensington Lock |
Dimensions, Weight & Design
6
| Specification | Value |
|---|---|
| Dimensions With Stand | 610.3 mm x 429.5 mm x 218.8 mm (W x H x D) |
| Dimensions Without Stand | 610.3 mm x 369.2 mm x 70.5 mm (W x H x D) |
| Weight With Stand | 7.62 kg (16.8 lbs) |
| Weight Without Stand | 4.97 kg (10.96 lbs) |
| Stand Depth | 218.8 mm (8.61 in) |
| RGB Lighting | Yes |
Power & Operating Conditions
13
| Specification | Value |
|---|---|
| Power Input | 100–240V |
| 110V Input Range | 100 V - 120 V |
| 220V Input Range | 220 V - 240 V |
| AC Frequency | 50 Hz - 60 Hz |
| Average Power Consumption | 80 W |
| Sleep Consumption | 0.5 W |
| Off Consumption | 0.3 W |
| Operating Temperature | 0 °C - 40 °C / 32 °F - 104 °F |
| Operating Humidity | 20 % - 80 % |
| Operating Altitude | 3658 m / 12001.3 ft |
| Storage Temperature | -20 °C - 60 °C / -4 °F - 140 °F |
| Storage Humidity | 10 % - 90 % |
| Storage Altitude | 12192 m / 40000 ft |
Eye Care, Protection & Additional Features
15
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Low Blue Light | Yes |
| Proximity Sensor | Yes |
| OLED Protection | Yes |
| OLED Care | Yes |
| Burn-In Protection | Yes (ASUS OLED Care / OLED Care Pro) |
| Thermal Management | Yes |
| Custom Heatsink | Yes |
| Desktop Control Software | Yes |
| Monitor Management Software | Yes |
| Screen Split | Yes |
| Aura Sync | Yes |
| Multiple HDR Modes | Yes |
| Anti-Theft Slot | Yes (Kensington lock slot) |
| Additional Monitor Features | 6-axis adjustment; Asus DisplayWidget Center; Aura Sync; Clear Pixel Edge; Color Temperature Selection; Custom Heatsink; GameFast Input; GameVisual; Multiple HDR Mode; Neo Proximity Sensor |
Certifications, Standards & Licenses
4
| Specification | Value |
|---|---|
| TÜV Flicker-Free | Yes |
| TÜV Low Blue Light | Yes |
| VESA DisplayHDR | DisplayHDR 400 True Black |
| VESA AdaptiveSync | Display 240Hz |
Included Accessories
4
| Specification | Value |
|---|---|
| HDMI Cable | HDMI 2.1 cable |
| DisplayPort Cable | DisplayPort 2.1 (DP80) cable |
| USB-C Cable | USB Type-C cable |
| USB Upstream Cable | USB 3.2 cable |
Packaging Information
5
| Specification | Value |
|---|---|
| Package Dimensions | 896 mm x 490 mm x 188 mm (W x H x D) |
| Package Width | 896 mm (35.28 in) |
| Package Height | 490 mm (19.29 in) |
| Package Depth | 188 mm (7.40 in) |
| Package Weight | 12.4 kg (27.34 lbs) |
Frequently Asked Questions
01 What separates the PG27UCDM HDR list from basic DisplayHDR 400 monitors? +
It uses a self-emissive QD-OLED panel and carries the True Black version of the certification. Dolby Vision and a 1,000 cd/m² peak claim are also listed, although sustained brightness remains lower.
02 Why is 250 cd/m² typical brightness important beside a 1,000 cd/m² peak? +
It shows that normal or larger-area output may be far below the small-highlight maximum. The sheet does not state how long or over what screen area the peak can be maintained.
03 Is the DisplayPort connection fully described in this sheet? +
No. The Ports entry cuts off after beginning the DisplayPort listing. Its presence is visible, but the version and features cannot be stated confidently from the supplied text.
04 How useful is the PG27UCDM for a USB-C laptop during the day? +
The Type-C port carries DisplayPort Alt Mode, 5 Gbps data and up to 90 W power. Three downstream Type-A ports also provide a basic peripheral hub.
05 What is the clearest reason to choose this over a 60 Hz 4K creator monitor? +
Its 240 Hz refresh, 0.03 ms GtG claim and three adaptive-sync standards are built for fast gaming. The trade-off is that colour accuracy measurements are not published here.
Reviews
DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT
SHEET № ROG SWIFT OLED PG27UCDM