ASUS ROG Swift OLED PG27UCDM 27" 4K 240Hz QD-OLED Monitor
ASUS
ASUS ROG Swift OLED PG27UCDM 27" 4K 240Hz QD-OLED Monitor
The ASUS ROG Swift OLED PG27UCDM is a 27-inch 4K 240Hz gaming monitor built around fourth-generation QD-OLED panel technology, aimed at competitive gamers and professional creators who need accurate colour, near-instant response, and high refresh rates in a single display. It pairs a 0.03ms GTG response time with DisplayPort 2.1a UHBR20 connectivity capable of carrying uncompressed 4K at 240Hz, addressing the bandwidth bottleneck that previously forced compression at this resolution and refresh rate.
Why this product
4th-gen QD-OLED with crisper text
The latest generation Tandem QD-OLED panel improves sharpness and text clarity over earlier OLED designs, making it as practical for desktop work as it is for gaming.
240Hz refresh with 0.03ms GTG response
A 240Hz refresh rate combined with a 0.03ms gray-to-gray response time and ASUS Extreme Low Motion Blur technology keeps fast-moving scenes sharp and free of ghosting.
DisplayPort 2.1a UHBR20 — full 80Gbps
The full 80Gbps bandwidth of DP 2.1a UHBR20 supports 4K at 240Hz or 8K at 60Hz without signal compression, and also accommodates improved data-transmission efficiency.
OLED Anti-Flicker 2.0 reduces flicker by 20%
A new luminance compensation algorithm cuts flicker by 20% compared to the previous-generation panel, reducing eye strain during extended sessions.
Neo Proximity Sensor protects against burn-in
ASUS OLED Care Pro uses a proximity sensor to detect when the user steps away and switches to a black screen automatically, lowering the risk of image retention.
99% DCI-P3 with Dolby Vision and true 10-bit
With 99% DCI-P3 coverage, Delta E < 2 accuracy, HDR10 and Dolby Vision support, and true 10-bit colour depth, it meets the colour standards professional creators depend on.
- Screen Size26.5" (27" class)
- Resolution3840 × 2160 (4K UHD)
- Panel TypeQD-OLED (4th Gen Tandem)
- Refresh Rate240Hz
- Response Time0.03ms GTG
- HDR Peak Brightness1,000 cd/m²
- Colour Gamut99% DCI-P3
- Adaptive SyncNVIDIA G-SYNC Compatible, AMD FreeSync Premium Pro
- SKUASU-2344
- EAN4711387815236
- Works with any GPU via HDMI 2.1 (two ports) or USB-C with DisplayPort Alt Mode.
- NVIDIA G-SYNC Compatible and AMD FreeSync Premium Pro — variable refresh rate is supported on both major GPU platforms.
- USB-C port delivers 90W Power Delivery, enough to charge most laptops while in use as a display.
- VESA 100 × 100 mm mount pattern — compatible with standard third-party arms and wall mounts.
- 4K at 240Hz without compression requires a GPU with a DisplayPort 2.1 UHBR20 output; HDMI 2.1 and older DP connections will not carry this bandwidth combination.
- The built-in KVM switch lets one keyboard and mouse control multiple connected devices, but requires those devices to be connected to the monitor's USB and display inputs.
Best for
- Competitive gamers who need the fastest possible response — the 240Hz refresh and 0.03ms GTG response time leave little margin for blur or tearing.
- Colour-critical creators working in wide-gamut pipelines: 99% DCI-P3, true 10-bit colour, Delta E < 2, and Dolby Vision support align with professional production standards.
- Multi-device users who want a single display with a built-in KVM switch, three USB 3.2 Gen 1 Type-A ports, and 90W USB-C Power Delivery to reduce desk clutter.
- HDR enthusiasts: 1,500,000:1 native contrast ratio and VESA DisplayHDR 400 True Black certification produce deep blacks that LCD-based monitors cannot match.
- Future-ready builders pairing this display with a next-generation GPU, as DP 2.1a UHBR20 headroom means the connection will not become the bottleneck.
Trade-offs
- Users without a DP 2.1 GPU: achieving 4K at 240Hz requires a DisplayPort 2.1 UHBR20 source; buyers without one will be limited to lower refresh rates or resolutions over existing interfaces.
- Audio-first setups: it ships with no built-in speakers, so external audio hardware is required.
- Buyers prioritising peak brightness above 1,000 cd/m² HDR peak: the specified peak sits at 1,000 cd/m², which may be outpaced by some high-end mini-LED monitors in this regard.
- Touch-dependent workflows: this is a non-touch display.
27" ASUS ROG Swift OLED PG27UCDM 4K Gaming Monitor
The ROG Swift OLED PG27UCDM is a 27-inch, 240Hz 4K gaming monitor that boasts the latest fourth-generation QD-OLED technology to deliver supersharp visuals and crisp text.
Built-in DisplayPort 2.1a UHBR20 provides a full 80Gbps bandwidth to support uncompressed 4K visuals at a stunning 240Hz to elevate viewing experiences to the next level.
4th Gen QD-OLED Technology
Super-Smooth Visuals The ROG Swift OLED PG27UCDM is the first 27-inch 4K OLED gaming monitor from ROG.
Designed for discerning gamers and professional creators, ASUS Extreme Low MOtion Blur technology helps to reduce ghosting and motion blur, alongside a refresh rate of 240Hz and 0.03ms gray-to-gray (GTG) response time for fluid, blur-free imagery.
A Plethora of Ports
Rich Connectivity The PG27UCDM features the future-ready DisplayPort 2.1a UHBR20 with full 80Gbps bandwidth, supporting 4K at 240Hz or 8K at 60Hz visuals without compression while offering improved data-transmission efficiency.
General
| Brand | ASUS |
|---|---|
| Model | ROG Swift OLED PG27UCDM |
| Condition | Brand New |
| Part Number | PG27UCDM |
Display
| Screen Size | 26.5" |
|---|---|
| Panel Type | QD-OLED (Tandem) |
| Panel Coating | Anti-Reflective |
| Resolution | 3840 × 2160 (Ultra HD / 4K) |
| Aspect Ratio | 16:9 |
| Refresh Rate | 240Hz |
| Response Time | 0.03ms GTG |
| Backlight | OLED (self-emissive) |
| Curvature | Flat |
| Pixel Pitch | 0.15525 mm |
| Viewing Angle (H / V) | 178° / 178° |
| Display Area (H × V) | 589.97 × 332.93 mm |
Colour & HDR
| Colour Bit Depth | 10-bit (1.07 billion colours) |
|---|---|
| Colour Space (DCI-P3) | 99% |
| Colour Space (sRGB) | 145% |
| HDR Support | HDR10, Dolby Vision |
| VESA HDR Certification | DisplayHDR 400 True Black |
| Brightness (HDR Peak) | 1,000 cd/m² |
| Brightness (SDR Typical) | 450 cd/m² |
| Contrast Ratio | 1,500,000:1 |
| Adaptive Sync | NVIDIA G-SYNC Compatible, AMD FreeSync Premium Pro |
| HDCP | Yes |
Connectivity & Physical
| DisplayPort | 1 × DisplayPort 2.1a UHBR20 (80Gbps) |
|---|---|
| HDMI | 2 × HDMI 2.1 |
| USB-C | 1 × USB-C (DP Alt Mode, 90W PD) |
| USB-A | 3 × USB 3.2 Gen 1 Type-A |
| Audio Out | 1 × 3.5mm Headphone Out |
| KVM Switch | Built-in |
| VESA Mount | 100 × 100 mm |
| Position Adjustment | Height, Pivot, Swivel, Tilt |
| Dimensions with Stand (W × H × D) | 61.03 × 54.95 × 21.88 cm |
| Dimensions without Stand (W × H × D) | 61.03 × 36.92 × 7.05 cm |
| Weight with Stand | 7.62 kg |
| Weight without Stand | 4.97 kg |
| Power Usage (On) | 80W |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.