1. Introduction and Overview
The UltraPro 8K HDMI 2.1 Cable is designed for high-performance audio and video transmission, supporting the latest HDMI 2.1 specifications. This cable facilitates a superior entertainment experience with advanced features for gaming, streaming, and high-definition media. It is engineered for durability and optimal signal integrity.
This manual provides essential information for the proper installation, operation, and maintenance of your UltraPro 8K HDMI 2.1 Cable. Please read it thoroughly to ensure the best performance and longevity of your product.
2. Key Features
- HDMI 2.1 Compliance: Supports the latest HDMI 2.1 standard, enabling higher resolutions and refresh rates.
- High Data Transfer Speed: Achieves up to 48Gbps, significantly faster than previous HDMI versions.
- Resolution Support: Capable of 8K resolution at 60Hz and 4K resolution at 120Hz, including 1440p and 1080p at 120Hz.
- Dynamic HDR: Delivers a bright, clear picture with rich, vibrant colors for enhanced visual fidelity.
- Enhanced Variable Refresh Rate (VRR): Minimizes lag time and eliminates frame tearing for smoother gameplay and video.
- Enhanced Audio Return Channel (eARC): Supports advanced audio formats, including up to 32 channels of pure audio and uncompressed data streams like Dolby Atmos and HD Dolby 7.1.
- Quick Media Switching (QMS): Reduces delays that can result in blank screens before content is displayed.
- Maximum Shielding: Designed to minimize electromagnetic interference, ensuring optimal sight, sound, and speed.
- Durable Construction: Features a braided cable, gold-plated contacts, and a premium metallized finish on the cable heads for long-lasting performance.
- Broad Compatibility: Backwards compatible with all HDMI generations from 1.0 through 2.1, connecting to various devices such as PS5, Xbox Series X, Roku TV, streaming devices, monitors, and more.
3. Setup and Installation
The UltraPro 8K HDMI 2.1 Cable is designed for simple plug-and-play installation. Follow these steps to connect your devices:
- Identify Ports: Locate the HDMI output port on your source device (e.g., gaming console, streaming device, graphics card) and the HDMI input port on your display device (e.g., 8K TV, 4K monitor). Ensure both devices support HDMI 2.1 for full functionality.
- Connect Cable: Insert one end of the UltraPro 8K HDMI 2.1 Cable firmly into the HDMI output port of your source device.
- Connect to Display: Insert the other end of the cable firmly into the HDMI input port of your display device.
- Power On Devices: Turn on both your source device and your display device.
- Select Input: On your display device, select the correct HDMI input source.
Note: For optimal performance, ensure your source and display devices, as well as any intermediate receivers or switches, are HDMI 2.1 compatible.

Image: Connecting the UltraPro 8K HDMI 2.1 cable to a device. This cable offers 48Gbps data transfer, significantly faster than HDMI 1.4 (10.2Gbps) and HDMI 2.0 (18Gbps).
4. Operating Instructions
Once connected, the UltraPro 8K HDMI 2.1 Cable operates automatically to transmit audio and video signals between your devices. No additional software or drivers are required.
- High Resolution and Refresh Rate: The cable will automatically support the highest resolution and refresh rate available from your source device and supported by your display, up to 8K@60Hz or 4K@120Hz.
- HDR Content: When playing HDR-enabled content on a compatible display, the cable will transmit the necessary data for enhanced dynamic range, resulting in richer colors and contrast.
- Gaming Features: For gaming consoles (e.g., PS5, Xbox Series X) and PCs with compatible GPUs and displays, the cable enables VRR (Variable Refresh Rate) and QMS (Quick Media Switching) for a smoother, more responsive gaming experience.
- Enhanced Audio: If your display or audio receiver supports eARC, the cable will facilitate the transmission of high-bitrate audio formats from your TV back to your audio system, simplifying your audio setup.

Image: The UltraPro 8K HDMI 2.1 cable supports 4K@120fps and 8K@60fps, along with features like eARC, 48Gbps bandwidth, Dynamic HDR, VRR, ALLM, and QMS for superior video and gaming.
Video: An official product video showcasing the features and benefits of UltraPro 2.1 Premium 8K HDMI Cables with Ethernet, highlighting immersive gaming, virtual reality, high-definition movies, streaming, and compatibility with various devices.
5. Specifications
| Feature | Specification |
|---|---|
| Brand | UltraPro |
| Model | 57347 |
| Cable Type | HDMI 2.1 |
| Length | 6 Feet (1.8 meters) |
| Data Transfer Rate | 48 Gigabits Per Second (Gbps) |
| Max Resolution / Refresh Rate | 8K @ 60Hz, 4K @ 120Hz, 1440p @ 120Hz, 1080p @ 120Hz |
| Special Features | Dynamic HDR, VRR, eARC, QMS, ALLM, Ethernet Channel |
| Connector Type | HDMI Male-to-Male |
| Connector Finish | Gold-plated contacts, Premium Metallized Finish |
| Shielding | Maximum shielding for EMI reduction |
| Color | Black |
| Item Weight | 0.16 Kilograms |
| Indoor/Outdoor Usage | Indoor |

Image: The UltraPro 8K HDMI 2.1 cable, highlighting its 6ft length and readiness for 8K and 10K resolutions, while being fully 4K compatible.
6. Troubleshooting
If you encounter issues with your UltraPro 8K HDMI 2.1 Cable, try the following troubleshooting steps:
- No Picture/Sound:
- Ensure both ends of the HDMI cable are securely connected to the correct ports on your source and display devices.
- Verify that your display is set to the correct HDMI input source.
- Try restarting both your source and display devices.
- Test the cable with another HDMI-compatible device to rule out issues with the source or display.
- Poor Picture Quality (Flickering, Artifacts):
- Check if the resolution and refresh rate settings on your source device are compatible with your display.
- Ensure that all devices in the signal chain (source, cable, display, any receivers/switches) support the desired resolution and features (e.g., 8K, HDR).
- Minimize electromagnetic interference by keeping the cable away from power cords and other electronic devices.
- Features Not Working (e.g., VRR, eARC):
- Confirm that both your source and display devices fully support the specific HDMI 2.1 feature you are trying to use. Firmware updates may be required for some devices.
- Consult the user manuals for your source and display devices to ensure these features are enabled in their settings.
7. Maintenance
To ensure the longevity and optimal performance of your UltraPro 8K HDMI 2.1 Cable, follow these simple maintenance guidelines:
- Handle with Care: Avoid excessive bending, twisting, or pulling of the cable, especially near the connectors.
- Keep Clean: Periodically wipe the cable and connectors with a soft, dry cloth to remove dust and debris. Do not use liquid cleaners directly on the connectors.
- Proper Storage: When not in use, coil the cable loosely and store it in a clean, dry place away from extreme temperatures.
- Avoid Stress: Do not place heavy objects on the cable or route it through areas where it might be stepped on or pinched.
8. Warranty and Support
The UltraPro 8K HDMI 2.1 Cable is backed by a Limited-Lifetime Warranty. This warranty covers defects in materials and workmanship under normal use.
For warranty claims, technical support, or further assistance, please contact UltraPro customer service. Keep your proof of purchase for warranty validation.
Please refer to the official UltraPro website or product packaging for the most current warranty terms and contact information.





