HDMI extender Secomp 14.01.3642 — 4K@30Hz, range up to 120 m

The Secomp 14.01.3642 HDMI extender transmits HDMI video and audio signals up to 120 meters while supporting 4K resolution at 30 Hz. It is engineered to bridge distance between source devices and displays where standard HDMI cables are impractical, offering a single-solution link for conference rooms, classrooms, digital signage and home AV systems. The extender maintains HDMI video, audio and EDID information across the extended run to preserve basic signal compatibility between connected devices.

Advantages

The extender supports 4K@30Hz resolution, enabling high-definition displays at extended distances without intermediate signal conversion. Its design provides stable transmission to distances up to 120 m, reducing the need for multiple signal repeaters or additional infrastructure. The unit preserves audio streams alongside video and propagates EDID information to help match source output to display capabilities. Installation requires minimal configuration and the form factor fits typical AV racks or discrete installations.

Suitable for

• Conference rooms and boardrooms where the source is remote from the display
• Digital signage installations in retail, hospitality or public spaces
• Classrooms, lecture halls and training facilities
• Residential AV setups where long cable runs are required

Key specifications

• Maximum supported resolution: 4K (3840×2160) at 30 Hz
• Maximum transmission distance: up to 120 meters
• Signal types transmitted: HDMI video and audio with EDID pass-through
• Compatibility: works with HDMI source devices and HDMI displays supporting the listed resolution
• Physical connection: standard HDMI interfaces at source and display ends

How to use

Connect the HDMI output of the source device to the extender transmitter and connect the display to the extender receiver using HDMI cables. Run the required cable length between transmitter and receiver according to installation needs and ensure power is applied to both units if external power is required. Verify display settings on the source device and allow EDID negotiation to complete so the source outputs a compatible resolution. If image or audio issues occur, power-cycle the devices and recheck cable terminations.

Usage recommendations

For best results, use quality HDMI and interconnect cables rated for the installation distance, place devices away from strong electromagnetic interference sources, and verify that the connected display supports 4K@30Hz. When installing in permanent or public environments, test the full signal path before final mounting and secure cable runs to avoid strain on connectors.