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Audio and Video Extenders – Overview

AV extenders transmit video, audio and control signals over distances that a standard cable cannot cover. A transmitter at the source sends the signal via network cable, fibre optic cable or the IP network to a receiver at the display. This keeps computers, media players and conferencing systems centralised in the equipment room, while video and audio arrive exactly where they are needed: in the meeting room, the lecture theatre, the control room or at the digital signage display.

Extenders by Transmission Medium



Extenders over Cat6

Connect transmitter and receiver point-to-point via a network cable. The range depends on the resolution: in 4K, up to 70m is typically possible, in Full HD even more.
Cat.6 AV Extenders

Fibre Optic Extenders

Bridge 300m and more, are immune to electromagnetic interference and are ideal for industrial environments, medical technology and large buildings.

Fibre Optic Extenders

AV over IP Extenders

Use the network with a switch. One source can be distributed to multiple receivers and the system can be expanded flexibly.


AV over IP Extenders

Extenders by Signal



HDMI and DisplayPort Extenders

For video signals, there are HDMI extenders and DisplayPort extenders.

Is your computer missing a suitable video output? USB converters add HDMI or DisplayPort.
USB Converters HDMI & DP Extenders

KVM Extenders

Additionally transmit USB for keyboard and mouse alongside the video signal.

If you only need to connect USB devices over longer distances, USB extenders are the right solution. USB Extenders KVM Extenders

Audio Extenders

Transmit analogue stereo audio over Cat6 up to 500m, e.g. for PA systems.
Audio Extenders

Splitter Extenders

Distribute one signal simultaneously to several remote displays.
Splitter Extenders

Form Factors for Installation



In addition to classic extender sets with separate transmitter and receiver, there are form factors for specific installation scenarios:

Wall Plate Extenders

For wall mounting in flush-mounted boxes.
Wall Plate Extenders

Dongle Extenders

Compact extenders that plug directly into the device.
Dongle Extenders

What to Look for When Buying

Check the range at your target resolution, not just the maximum range. Also important:

  • Additional signals: Do you need IR, RS-232 or USB?
  • Power supply: With PoC (Power over Cable), the transmitter powers the receiver – no power supply needed at the display.
  • Cable quality: Cat6A is recommended for 4K and HDBaseT 3.0.

Frequently Asked Questions

What is HDBaseT?

A standard that transmits uncompressed video, audio, control signals and, depending on the version, USB and Ethernet over a single network cable.

Extender or active cable?

Active cables and active optical cables (AOC) are suited to fixed device-to-device runs. If you want to use existing network cabling, transmit a control signal as well or distribute the picture, an extender is the better choice.

AV extenders from Lindy: Lindy offers AV extenders over Cat6, fibre optic and IP for meeting rooms, education and media technology. System integrators and IT departments receive advice on projects and volume pricing from our technical sales team.

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