Product Overview
The Cable Matters Ultra Thin HDMI Cable is designed for high-speed data transfer, supporting 4K@60Hz resolution, High Dynamic Range (HDR), and an Ethernet channel. Its ultra-thin and flexible design makes it ideal for installations in tight spaces and for portability. This cable is compatible with a wide range of HDMI-enabled devices.

Image: The Cable Matters Ultra Thin HDMI Cable, highlighting its lightweight design and support for 4K@60Hz, HDR, and HDCP 2.2.
Key Features:
- Ultra-Thin & Lightweight Design: These HDMI cables are significantly thinner and lighter than standard HDMI cables, offering enhanced flexibility and portability.
- Compact & Flexible Build: Features a slender round jacket and low-profile 1-inch connectors, reducing strain on ports and allowing for easy coiling and storage.
- 4K Ultra HD & HDR Support: Supports 3D, 4K x 2K UHD, 2560x1600 cinema monitors, and is backward compatible with 1440p and 1080p. Includes Audio Return Channel (ARC), HDR, and an Ethernet channel.
- Reliable Signal Transmission: Gold-plated connectors resist corrosion, while solid copper conductors and copper-braided shielding ensure pure signal transmission and minimize interference.
- Wide Compatibility: Compatible with all HDMI devices featuring a full-sized HDMI port, including HDTVs, UHD TVs, computers, Blu-ray/DVD players, monitors, media streaming devices, and gaming consoles (PS5, Xbox Series X/S). HDCP compliant.
Setup Instructions
Connecting your Cable Matters Ultra Thin HDMI Cable is a straightforward process. Follow these steps to ensure proper connection and optimal performance.
- Identify HDMI Ports: Locate the HDMI output port on your source device (e.g., computer, gaming console, Blu-ray player) and the HDMI input port on your display device (e.g., TV, monitor, projector).
- Connect Source Device: Gently insert one end of the Cable Matters Ultra Thin HDMI Cable into the HDMI output port of your source device. Ensure the connector is fully seated.
- Connect Display Device: Insert the other end of the HDMI cable into the HDMI input port of your display device. Again, ensure a firm connection.
- Power On Devices: Turn on both your source device and your display device.
- Select Input: On your display device, use the remote control or on-screen menu to select the correct HDMI input source that corresponds to the port you used.
The flexible nature of these cables allows for easy routing in tight spaces. Avoid excessive bending at sharp angles to prevent damage.

Image: Illustration of the wide compatibility of the HDMI cable, connecting output devices like laptops, PCs, gaming consoles, and Blu-ray players to displayed devices such as TVs, monitors, and projectors.
Operating Instructions
Once connected, the Cable Matters Ultra Thin HDMI Cable operates automatically to transmit audio and video signals. No additional software or drivers are required.
Basic Operation:
- Ensure both source and display devices are powered on and the correct HDMI input is selected on your display.
- The cable will automatically detect and transmit the highest supported resolution and refresh rate between your devices, up to 4K@60Hz.
- For devices supporting HDR, the cable will facilitate HDR signal transmission for enhanced color and contrast.
- If your devices support Audio Return Channel (ARC), audio can be sent from your TV back to an audio receiver via the HDMI cable.
- The integrated Ethernet channel allows for network data sharing between connected devices, if supported by your equipment.

Image: A living room setup showing individuals enjoying 4K@60Hz Ultra High Definition content on a large television, demonstrating the cable's capability for high-resolution viewing.

Image: A gaming workstation featuring a monitor displaying a high frame-rate racing game, highlighting the cable's support for 2K@144Hz for a smooth gaming experience.
Official Product Video:
Video: An official overview of the Cable Matters Slim HDMI cable, demonstrating its features and applications.
Maintenance
Proper care and maintenance will extend the lifespan of your Cable Matters Ultra Thin HDMI Cable.
- Cleaning: Use a soft, dry cloth to gently wipe the cable and connectors. Avoid using liquid cleaners or abrasive materials.
- Storage: When not in use, coil the cable loosely. Avoid tight bends or kinks, especially near the connectors. Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Always grasp the connector housing when plugging or unplugging the cable. Do not pull on the cable itself, as this can damage the internal wires.
- Protection: Keep the cable away from pets and young children to prevent chewing or accidental damage.
Troubleshooting
If you encounter issues with your HDMI cable, refer to the following common troubleshooting steps:
| Problem | Solution |
|---|---|
| No Video/Audio Signal |
|
| Flickering Screen or Intermittent Signal |
|
| Poor Picture Quality (e.g., blurry, discolored) |
|
| No HDR or 4K@60Hz |
|
Product Specifications
| Feature | Detail |
|---|---|
| Brand | Cable Matters |
| Model Number | 300018-3x2 |
| Connector Type | HDMI (Male to Male) |
| Cable Type | Ultra Thin HDMI |
| Length | 3 Feet (0.91 meters) |
| Resolution Support | Up to 4K x 2K UHD (3840x2160) at 60Hz, 2560x1600, 1440p, 1080p |
| Features | 3D, HDR, Audio Return Channel (ARC), Ethernet Channel, HDCP Compliant |
| Conductor Material | Solid Copper |
| Connector Plating | Gold-plated |
| Shielding | Copper-braided |
| Outer Material | Plastic |
| Color | Black |
| Item Weight | 2.39 ounces (approx. 67.7 grams) |
| Package Dimensions | 8.07 x 6.02 x 0.59 inches |
| Number of Items | 2 (2-Pack) |
Warranty and Support
Cable Matters products are designed for reliability and performance. For specific warranty details and customer support, please refer to the official Cable Matters website or contact their customer service directly.
- Return Policy: Products typically have a 30-day return/replacement policy. Please check your purchase details for exact terms.
- Manufacturer Support: Cable Matters offers first-class quality and affordable products backed by an exceptional customer experience.
- Online Resources: Visit the Cable Matters Store on Amazon for additional product information and support.





