Introduction
Thank you for choosing the UGREEN USB C to 16K Displayport 2.1 Cable. This high-performance cable is designed to deliver unparalleled video and audio quality, supporting resolutions up to 16K Ultra HD and high refresh rates for a smooth visual experience. It is backward compatible with DisplayPort 2.0/1.4/1.3 and compatible with Thunderbolt 3/4 devices. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure you get the most out of your cable.
1. Setup Instructions
1.1 Connecting Your Device
To set up your UGREEN USB C to 16K Displayport 2.1 Cable, follow these steps:
- Ensure both your source device (e.g., laptop, phone, tablet) and your display device (e.g., monitor, HDTV, projector) are powered off.
- Connect the USB-C end of the cable to the USB-C port on your source device. Ensure your source device's USB-C port supports DisplayPort Alternate Mode (DP Alt Mode).
- Connect the DisplayPort end of the cable to the DisplayPort input on your display device.
- Power on your display device, then power on your source device.
- Select the correct DisplayPort input on your display device if it does not automatically detect the signal.
Important: This cable is designed for USB-C to DisplayPort connections only. It is not compatible with USB-A or HDMI ports.

1.2 Wide Compatibility
The UGREEN USB C to 16K Displayport 2.1 Cable offers broad compatibility with various devices and operating systems:
- Input Devices (USB-C with DP Alt Mode / Thunderbolt 3/4):
- Laptops/PCs: MacBook Pro/Air (2023/2022), Dell XPS 17/15, Mac Mini, Mac Pro, etc.
- Phones: Galaxy S23/S23+, Galaxy Note 22 Ultra, LG V60, etc.
- Tablets: iPad Pro 2022, iPad Air 5/mini 6, Surface Pro 9, Galaxy Tab, etc.
- Output Devices (DisplayPort):
- Monitors, HDTVs, Projectors, Oculus Rift S, etc.
- Supported Operating Systems:
- Windows, macOS, Linux, iOS, Android

2. Operating Your Cable
2.1 Display Modes
This cable supports advanced display configurations for enhanced productivity and entertainment:
- Daisy Chaining: Connect multiple DisplayPort monitors in a series from a single DisplayPort output on your source device. This allows for an extended desktop across several screens.
- Clamshell Mode: Use your laptop with its lid closed while connected to an external monitor, keyboard, and mouse, effectively turning your laptop into a desktop setup.

2.2 Supported Resolutions and Refresh Rates
Experience stunning visuals with high resolutions and refresh rates:
- 16K Ultra HD: Up to 16K@30Hz
- 10K: Up to 10K@60Hz
- 8K: Up to 8K@120Hz
- 4K: Up to 4K@144Hz
- Gaming: Supports refresh rates up to 240Hz for a super smooth gameplay experience at lower resolutions.


2.3 Advanced Features
The cable supports a range of advanced features for an immersive multimedia experience:
- HDR10+: Enhanced dynamic range for vibrant colors and contrast.
- HDCP 2.3: High-Bandwidth Digital Content Protection for secure content transmission.
- 3D Vision: Support for immersive 3D visual effects.
- Dolby Vision & Dolby Atmos: Premium video and audio technologies for cinematic quality.
- Display Stream Compression (DSC): Enables higher resolutions and refresh rates over existing DisplayPort bandwidth.
- Forward Error Correction (FEC): Improves data integrity for reliable transmission.


3. Care and Maintenance
3.1 General Care
To ensure the longevity and optimal performance of your UGREEN USB C to 16K Displayport 2.1 Cable, please follow these care guidelines:
- Avoid bending the cable sharply, especially near the connectors, as this can damage internal wires.
- Store the cable in a clean, dry place away from extreme temperatures and direct sunlight.
- When disconnecting, always grasp the connector head, not the cable itself, to prevent strain.
- Keep the connectors free from dust and debris. You can use a soft, dry cloth to gently clean them.
3.2 Durability Features
The cable is built with premium materials for enhanced durability and performance:
- Aluminum Alloy Case: Provides robust protection for the connectors and helps dissipate heat.
- Gold-plated Connectors: Resist corrosion and ensure stable signal transmission.
- Nylon Braided Cable: Offers superior flexibility and resistance to wear and tear, preventing tangles.
- Anti-Surge and Anti-EMC Radiation: Designed to reduce interference and extend the cable's lifespan.



4. Troubleshooting
If you encounter issues with your UGREEN USB C to 16K Displayport 2.1 Cable, please refer to the following common troubleshooting steps:
4.1 No Display / Flickering Screen
- Check Connections: Ensure both the USB-C and DisplayPort connectors are securely plugged into their respective ports.
- Verify DP Alt Mode: Confirm that your source device's USB-C port supports DisplayPort Alternate Mode. Not all USB-C ports support video output.
- Try Another Port/Cable: If possible, test with a different USB-C port on your source device or a different DisplayPort input on your display. If you have another compatible cable, test it to isolate the issue.
- Restart Devices: Power cycle both your source device and your display.
- Update Drivers: Ensure your graphics drivers on your source device are up to date.
4.2 Incorrect Resolution or Refresh Rate
- Check Device Capabilities: Verify that both your source device and your display support the desired resolution and refresh rate.
- Adjust Display Settings: Access your operating system's display settings (e.g., Windows Display Settings, macOS System Preferences > Displays) and manually set the resolution and refresh rate.
- Cable Length: For very high resolutions and refresh rates (e.g., 16K@30Hz, 8K@120Hz), longer cable lengths might experience signal degradation. Ensure you are using an appropriate cable length for your setup.
4.3 Audio Issues
- Check Audio Output: Ensure your operating system's audio output is set to the DisplayPort device (your monitor or connected audio system).
- Volume Levels: Verify that the volume on both your source device and display/audio system is not muted or set too low.
5. Product Specifications
Detailed technical specifications for the UGREEN USB C to 16K Displayport 2.1 Cable:
| Attribute | Specification |
|---|---|
| Brand | UGREEN |
| Model Number | CM707 |
| Product Name | 16K Resolution USB-C to DisplayPort Cable |
| Connector A | Type-C (Male) |
| Connector B | Displayport (DP) (Male) |
| DisplayPort Version | DP V2.1 (Backward compatible with DP2.0/1.4/1.3) |
| Total Bandwidth | 40Gbps |
| Resolution Support | 16K@30Hz, 10K@60Hz, 8K@120Hz, 4K@144Hz |
| Compatible with | Thunderbolt 3/4 |
| Supported System | Windows/macOS/Linux/iOS/Android |
| Shielding | Foil |
| Outer Diameter | 2mm |
| Color | Deep Grey (16K Metal Grey) |
| Certification | CE, FCC |
| Packaging | UGREEN Retail Box (Carton Box) |

5.1 Dimensions

5.2 DisplayPort Version Comparison (DP2.1 vs DP1.4)
| Feature | DP2.1 | DP1.4 |
|---|---|---|
| Bandwidth | 40Gbit/s | 32.4Gbit/s |
| 16K Refresh Rate | 30Hz | / |
| 10K Refresh Rate | 60Hz | / |
| 8K Refresh Rate | 120Hz | 60Hz |
| 4K Refresh Rate | 144Hz | 144Hz/120Hz |
| 2K Refresh Rate | / | 165Hz/144Hz |
| 1080P Refresh Rate | / | 240Hz |
| Dynamic HDR | ✓ | ✓ |
| 3D Effect | ✓ | ✓ |
| Display Stream Compression (DSC) | ✓ | ✓ |
| Forward Error Correction (FEC) | ✓ | ✓ |

6. User Tips
Here are some helpful tips from other users and common inquiries:
6.1 Cable Length Considerations
The UGREEN USB C to 16K Displayport 2.1 Cable is available in various lengths, including 1m, 2m, and 3m. When choosing your cable, consider the distance between your source device and your display to avoid unnecessary slack or tension. For optimal performance at the highest resolutions and refresh rates, using the shortest practical cable length is often recommended.
6.2 Optimizing Refresh Rates
While the cable supports high refresh rates, the actual refresh rate you achieve depends on your source device's graphics card, its drivers, and your display's capabilities. If you're not getting the expected refresh rate, ensure all components in your setup are compatible and check your operating system's display settings to manually select the highest available refresh rate for your chosen resolution.
7. Warranty and Support
UGREEN is committed to providing high-quality products. This product comes with a standard manufacturer's warranty. For detailed warranty information, technical support, or any product-related inquiries, please visit the official UGREEN website or contact their customer service directly. Please have your product model (CM707) and purchase details ready when contacting support.