ASUS's 4K QD-OLED gaming monitor is built around DisplayPort 2.1 UHBR20 (80Gbps) — the only input that handles 4K@240Hz natively without DSC. The two HDMI 2.1 ports max out at 40Gbps for consoles and the USB-C input carries DP Alt Mode video plus 90W of laptop charging. Note the configurable USB-C mode: 'USB 3.2' reserves two lanes for SuperSpeed data, while 'USB 2.0' frees all four lanes for DisplayPort traffic to deliver 4K@240Hz over USB-C.
ASUS’s 4K QD-OLED gaming display with DisplayPort 2.1 UHBR20, two HDMI 2.1 ports, and USB-C with 90W charging.
Device Information
- Manufacturer
- ASUS
- Release Year
- 2024
- Model Number
- PG27UCDM
- Category
- Monitor
Available Ports
| Connector | Quantity | Label | Notes |
|---|---|---|---|
| DisplayPort 2.1 | 1 | DisplayPort 2.1 UHBR20 | 80Gbps — 4K@240Hz uncompressed |
| HDMI 2.1 (Type A – Standard) | 2 | HDMI 2.1 | 40Gbps, 4K@120Hz with VRR |
| USB Type-C (USB 3.2 Gen 2) | 1 | USB-C upstream | DP Alt Mode video + 90W PD charging |
| USB Type-B (USB 3.2 Gen 1) | 1 | USB-B upstream | USB hub upstream (data only) |
| USB Type-A (USB 3.2 Gen 1) | 3 | USB-A downstream | 5Gbps hub downstream ports, KVM-switchable |
| 3.5mm TRS (Stereo Audio) | 1 | Headphone out | 3.5mm stereo headphone output |
Notes & Compatibility
DisplayPort 2.1 UHBR20 is the only path to 4K@240Hz uncompressed. USB-C carries 90W PD plus DP Alt Mode. Built-in KVM switches USB hub between two hosts. Set USB-C to ‘USB 2.0’ to free all four lanes for DisplayPort and unlock 4K@240Hz over USB-C.
