UGREEN HD178 HDMI 4K Fiber Optic Cable Male to Male 40M

The UGREEN HD178 40M HDMI Fiber Optic Cable provides a reliable solution for installations where an ordinary copper HDMI cable may struggle to maintain signal quality over a long distance. Using optical fiber for high-speed signal transmission, the cable can carry HDMI video and audio across its 40 metre length while reducing the effects of electromagnetic interference. This makes it particularly suitable for permanent installations in offices, schools, conference rooms, entertainment systems and commercial environments.

4K Ultra HD Support

The UGREEN HD178 supports 4K Ultra HD video, allowing compatible HDMI source and display devices to deliver sharp images with greater detail than Full HD. It is suitable for applications such as presentations, movies, surveillance monitoring and large-screen digital displays.

40-Metre Long Distance Transmission

With a cable length of 40 metres, the HD178 is designed for installations where the source equipment and display are located far apart.

Typical applications include:

• Control room to large display
• NVR to surveillance monitor
• Laptop or PC to projector
• Conference table to wall-mounted display
• AV equipment rack to television
• Digital signage player to commercial display
• Classroom computer to projector

Fiber Optic Technology

Instead of relying entirely on traditional copper conductors for high-bandwidth HDMI signals, the HD178 uses fiber-optic transmission technology. This provides important advantages over very long conventional HDMI cables, including improved long-distance signal stability and strong resistance to electromagnetic interference. It is especially useful where the cable must run near other electrical or data cabling.

Male to Male HDMI Connection

The cable has an HDMI male connector at each end, allowing direct connection between compatible source and display equipment.

Source device → UGREEN HD178 40M → Display

No additional HDMI extension cable is normally required.

Aluminum Connector Shell

The connector housings use an aluminum shell, providing a durable finish while helping protect the internal connector components during normal installation and use.

Directional Cable – Important

Fiber-optic HDMI cables are generally directional. One connector should connect to the SOURCE, such as an NVR, PC, laptop, media player or decoder. The opposite end connects to the DISPLAY, such as a TV, monitor or projector. The direction markings on the cable should therefore be checked before installing it inside ceilings, conduits or walls.

Key Features

• UGREEN HD178
• HDMI male to HDMI male
• 40-metre cable length
• Fiber-optic HDMI technology
• Supports 4K Ultra HD
• Long-distance digital video transmission
• Digital audio transmission
• Reduced signal degradation over long distances
• Strong resistance to electromagnetic interference
• Aluminum connector shell
• Directional source-to-display connection
• Suitable for TVs and monitors
• Suitable for projectors
• Suitable for CCTV/NVR installations
• Suitable for conference rooms
• Suitable for digital signage
• Ideal for professional long-distance AV installations

Technical Specifications

Why Use Fiber Optic HDMI at 40M?

At 40 metres, fiber-optic HDMI is particularly useful because long passive copper HDMI cables can experience signal loss and stability problems. The HD178 converts the high-speed HDMI signal for transmission through optical fiber and then converts it back at the display end. This allows a much longer cable run while maintaining the digital signal.

Suitable for CCTV Systems

The 40m HD178 is a useful cable for professional CCTV installations.

For example: NVR → UGREEN HD178 40M → Security Monitor/TV

This allows the NVR to remain securely inside a server room or equipment cabinet while the monitoring display is installed elsewhere.

Suitable for Projectors

It is also a practical option for large conference rooms, classrooms and halls where the projector is far from the presentation equipment.

Laptop/PC → HD178 → Projector

The fiber connection reduces the problems associated with transmitting high-resolution HDMI signals over a long cable run.

Installation Note

Because this is a long fiber optic HDMI cable, avoid excessive pulling, crushing or tight bending during installation. Also confirm the SOURCE and DISPLAY ends before routing the cable through conduit or ceilings. For permanent installations, testing the cable with the actual source and display before closing the ceiling or conduit is recommended.

Compatibility

The HD178 can be used with compatible HDMI equipment such as desktop computers, laptops, NVRs, DVRs, media players, decoders, gaming devices, TVs, monitors, projectors and commercial displays.  The final resolution, refresh rate and HDMI features available will depend on both connected devices and the exact HD178 hardware specification.

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