RATED
Excellent
9/10
34.18″ Asus ROG Swift OLED PG34WCDN – Full Specifications
At its core, the ASUS ROG Swift OLED PG34WCDN uses a QD-OLED panel offering 3440 x 1440 pixels and a 48 Hz - 360 Hz refresh range.
Asus●Monitor
Display
34.18 in, QD-OLED, 3440 x 1440 pixels
34.18
Refresh Rate
48 Hz - 360 Hz
48 Hz
Brightness
300 cd/m²
300 cd
Contrast Ratio
1500000 : 1
1500000
Overview
At its core, the ASUS ROG Swift OLED PG34WCDN uses a QD-OLED panel offering 3440 x 1440 pixels and a 48 Hz - 360 Hz refresh range. For picture quality, expect 300 cd/m² typical brightness, 1500000 : 1 contrast and 135 % sRGB coverage. Response time is quoted at 0.03 ms GtG. On connectivity, you get 2x HDMI 2.1, 1x DisplayPort 2.1, 3x USB-A. On the sync side, FreeSync, G-Sync, VESA AdaptiveSync Display 360Hz is supported.
BrandASUSPanel TypeQD-OLEDResolution3440 x 1440 pixelsRefresh Rate48 Hz - 360 Hz
Key Highlights
- QD-OLED panel at 3440 x 1440 pixels
- 48 Hz - 360 Hz refresh range — built for competitive, fast-paced gaming
- 0.03 ms GtG response time
- 1500000 : 1 contrast ratio
- 300 cd/m² typical brightness
- 135 % sRGB colour coverage
- FreeSync, G-Sync, VESA AdaptiveSync Display 360Hz
- Connectivity: 2x HDMI 2.1, 1x DisplayPort 2.1, 3x USB-A
Who Should Buy the Asus ROG Swift OLED PG34WCDN
+ Best For
Competitive players who want ultrawide
360 Hz with a 0.03 ms response
Either GPU brand
G-Sync Compatible and FreeSync Premium Pro both certified
Laptop-and-PC desks
90 W USB-C handles video, data and charging
Dark-room gaming
1,500,000:1 contrast with no backlight glow
× Not Ideal For
Mid-range GPUs
3440 x 1440 at 360 fps needs a genuinely strong card
Desks without speakers
there is no built-in audio of any kind
Portrait layouts
no pivot, which is normal for a 34-inch ultrawide
All-day static UI work
OLED still needs burn-in care
Display Performance
Refresh Rate
48 Hz - 360 Hz
High-refresh gaming range
Response Time
0.03 ms GtG
Manufacturer-published transition time
Brightness
300 cd/m²
Typical brightness as specified; peak figure not published
Contrast
1500000 : 1
Standard panel black depth
Colour Gamut
135 % sRGB
Standard game and web colour
Gaming Performance
Refresh Rate48 Hz - 360 HzHigh ceiling supports competitive frame rates
Response Time0.03 ms (GtG)Published claim without independent testing
VRR / Adaptive SyncFreeSync, G-Sync, VESA AdaptiveSync Display 360HzHelps reduce tearing on compatible GPUs
GPU Requirement3440 x 1440 pixels up to 360 HzHigh refresh ceiling needs a high-end GPU to fully utilise
HDR & Brightness Reality
1300 cd/m2 peak is high for QD-OLED, and against true self-lit blacks it produces the sort of highlight contrast an LCD cannot reach - DisplayHDR 500 True Black is the correct certification here because it grades black level rather than raw output. The number to keep in mind is 300 cd/m2 across a full white screen, which is what a bright room actually tests. In controlled light this is excellent HDR; under a window it flattens like every other OLED.
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 / Footprint812.8 mm x 452.7 mm x 276.1 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-3 ° 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 ° / No pivotSupports shared angles and portrait rotation
Real-World Use Cases
360 Hz with 0.03 ms across the full 21:9 field
QD-OLED contrast with peripheral width
90 W USB-C plus three USB-A ports replaces a separate hub
1300 cd/m2 highlights against true black
Pros & Cons
Pros
- 48 Hz 360 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 360Hz give broad adaptive-sync compatibility
- 135 % sRGB coverage solid coverage for everyday colour accuracy
- Built-in USB hub adds convenient peripheral connectivity
Cons
- No listed built-in speakers
- No energy-efficiency certification (e.g. ENERGY STAR, TCO) is listed
- HDCP support isn’t explicitly confirmed for protected 4K/HDR streaming
- No factory or hardware colour calibration is listed
Score & Ratings
9/10
Great
Model Information
13
| Specification | Value |
|---|---|
| Brand | ASUS |
| Series | ROG Swift |
| Model | ROG Swift OLED PG34WCDN |
| Model Alias | ROG Swift OLED PG34WCDN |
| Full Product Name | ASUS ROG Swift OLED PG34WCDN |
| Model Year | 2026 |
| Monitor Type | Gaming Monitor |
| Market Position | Premium / Flagship Gaming |
| Primary Use | Competitive Esports & High-End Immersive Gaming |
| 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
15
| Specification | Value | What It Means |
|---|---|---|
| Screen Size | 34.18 in | |
| Exact Diagonal | 868.16 mm (34.18 in) | |
| Radius of Curvature | 1800 mm (70.87 in) | |
| Aspect Ratio | 2.389:1 | |
| Active Display Width | 800.06 mm (31.50 in) | |
| Active Display Height | 337.06 mm (13.27 in) | |
| Display Area | 88.88 % | |
| 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 Display | |
| OLED Technology | QD-OLED | |
| Self-Emissive Display | Yes | |
| Quantum Dot | Yes | |
| 3D Support | No | |
| Screen Coating | Anti-glare/Matte (3H) / EL Gen 3 technology / Black Shield Film |
Resolution & Pixel Details
4
| Specification | Value | What It Means |
|---|---|---|
| Native Resolution | 3440 x 1440 pixels | |
| Pixel Density | 109 ppi / 42 ppcm | 109 ppi / 42 ppcm indicates how much scaling may be needed in the operating system for comfortable reading. |
| Pixel Pitch | 0.231 mm (0.01 in) | |
| Subpixel Layout | V-Stripe (RGB Stripe) sub-pixel layout |
Picture Quality & Color
12
| Specification | Value | What It Means |
|---|---|---|
| Panel Bit Depth | 10 bits | |
| FRC | No | |
| Display Colors | 1073741824 colors / 30 bits | |
| Typical Brightness | 300 cd/m² | |
| Peak Brightness | 1300 cd/m² | |
| Static Contrast Ratio | 1500000 : 1 | |
| Horizontal Viewing Angle | 178 ° | |
| Vertical Viewing Angle | 178 ° | |
| HDR Support | DisplayHDR 500 True BlackHDR10 |
|
| HDR10 | Yes | |
| sRGB Coverage | 135 % | 135 % indicates how much of that color space the panel can reproduce, which affects color accuracy for photo/video work. |
| DCI-P3 Coverage | 99 % |
Refresh Rate, Response & Gaming
12
| Specification | Value |
|---|---|
| Native Refresh Rate | 360 Hz |
| Refresh Rate Range | 48 Hz - 360 Hz |
| Minimum Response Time | 0.03 ms |
| AMD FreeSync | Yes |
| NVIDIA G-Sync | Yes |
| Motion Blur Reduction | Yes |
| Shadow Boost | Yes |
| Crosshair | Yes |
| Dynamic Crosshair | Yes |
| AI Gaming Features | Yes |
| GameFast Input | Yes |
| GameVisual | Yes |
Ports & Connectivity
15
| Specification | Value |
|---|---|
| HDMI Ports | 2 |
| HDMI Version | 2.1 |
| HDMI Bandwidth | 27 kHz - 625 kHz |
| HDMI FRL | Yes |
| DisplayPort Input | 1 |
| DisplayPort Version | 2.1 |
| DisplayPort Bandwidth | UHBR20 |
| USB-C Video Input | Yes |
| DisplayPort Alt Mode | Yes |
| 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
14
| 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 | 3 ° | |
| Backward Tilt | 20 ° / 1/4" Tripod Socket | |
| Swivel Adjustment | Yes | |
| Left Swivel | 30 ° | |
| Right Swivel | 30 ° | |
| Portrait Mode | No | |
| Security Lock | Yes | |
| Anti-Theft Lock | Kensington Lock |
Dimensions, Weight & Design
6
| Specification | Value |
|---|---|
| Dimensions With Stand | 812.8 mm x 452.7 mm x 276.1 mm (W x H x D) |
| Dimensions Without Stand | 812.8 mm x 373.3 mm x 107.9 mm (W x H x D) |
| Weight With Stand | 8.3 kg (18.3 lbs) |
| Weight Without Stand | 5.6 kg (12.35 lbs) |
| Stand Depth | 276.1 mm (10.87 in) |
| RGB Lighting | Yes |
Power & Operating Conditions
13
| Specification | Value |
|---|---|
| Power Input | 100 V - 120 V / 220 V - 240 V |
| 110V Input Range | 100 V - 120 V |
| 220V Input Range | 220 V - 240 V |
| AC Frequency | 50 Hz - 60 Hz |
| Average Power Consumption | 85 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 | 20 % - 80 % |
| Storage Altitude | 12192 m / 40000 ft |
Eye Care, Protection & Additional Features
13
| 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 |
| Aura Sync | Yes |
| Anti-Theft Slot | Yes (Kensington lock slot) |
| Additional Monitor Features | Aspect Control; Asus DisplayWidget Center; Aura Sync Lighting Effect; AI Visual; Custom heatsink; GamePlus; GameFast Input; GameVisual; Luminance Compensation Algorithm; Neo Proximity Sensor; ROG OLED Anti-Flicker 2.0 technology; Uniform Brightness |
Certifications, Standards & Licenses
4
| Specification | Value |
|---|---|
| TÜV Flicker-Free | Yes |
| TÜV Low Blue Light | Yes |
| VESA DisplayHDR | DisplayHDR 500 True Black |
| VESA AdaptiveSync | Display 360Hz |
Included Accessories
4
| Specification | Value |
|---|---|
| HDMI Cable | HDMI cable |
| DisplayPort Cable | DisplayPort cable |
| USB-C Cable | USB Type-C cable |
| USB Upstream Cable | USB 3.2 cable |
Packaging Information
5
| Specification | Value |
|---|---|
| Package Dimensions | 980 mm x 500 mm x 200 mm (W x H x D) |
| Package Width | 980 mm (38.58 in) |
| Package Height | 500 mm (19.68 in) |
| Package Depth | 200 mm (7.87 in) |
| Package Weight | 13.7 kg (30.2 lbs) |
Frequently Asked Questions
01 Is 360 Hz on an ultrawide realistic to drive? +
In esports titles at 3440 x 1440, a high-end card can get close. In demanding single-player games you will land far lower and rely on VRR. Buy this if competitive titles are your main use; otherwise a 240 Hz ultrawide costs less and looks identical in slower games.
02 Is G-Sync properly supported, or just FreeSync? +
✓ Yes. It is certified both G-Sync Compatible and FreeSync Premium Pro, so variable refresh works properly on NVIDIA and AMD alike.
03 What is OLED Care Pro? +
Asus's bundle of burn-in countermeasures - pixel cleaning cycles, screen movement, logo dimming and similar. It does not eliminate the risk from static elements, but it manages it well for mixed gaming and desktop use.
04 Can it run my laptop on one cable? +
✓ Yes. The USB-C port delivers 90 W with DP Alt Mode, so a laptop gets picture, peripherals and charging from a single connection.
05 Why is there no audio? +
Asus left speakers out entirely on this model - not even token drivers. There is a 3.5 mm output, so headphones or desk speakers are required.
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SHEET № ROG SWIFT OLED PG34WCDN