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You are here: » Homepage » Audio & Video » Extenders » HDMI
Extend and distribute HDMI® & IR to 4 Displays at distances up to 70m
The Lindy 70m Cat.6 4 Port HDMI® & IR Splitter Extender is a simple to use plug and play solution that allows users to extend an HDMI® signal up to 70m and then distribute that signal to four displays using low cost Cat.6 UUTP cable (not included). For added convenience IR signals (20-60kHz) can also be extended using the supplied IR receiver and emitter cables.
Supporting resolutions up to 4K30, including 1080p 3D, the Splitter Extender is designed for use in AV and digital signage applications for a variety of settings such as home, education, business, retail and healthcare.
An integrated HDMI® loop-through output on the transmitter unit enables simultaneous viewing so that a local display can be connected for monitoring, or to create an additional viewing zone. For larger installations, the HDMI® loop-through port can also be used to cascade up to 3 transmitters allowing up to 12 displays to be connected to a single source.
The HDMI® loop-through port also allows the Splitter Extender to clone the EDID of a connected display. An integrated EDID emulation system provides EDID presets for ultimate compatibility with a variety of EDID enabled devices.
Power over Cable (PoC) functionality provides power for the complete installation using only a single power supply connected to the transmitter - a perfect solution for retro fit installations where receivers may be located away from a mains power supply. The power supply is connected via a screw type DC jack, providing a secure and reliable connection, ideal for installations where accidental disconnections could occur. For added convenience the Splitter Extender_s slim design and integrated mounting brackets make it easy to install in limited spaces behind modern flat screen displays.
The terms HDMI, HDMI High-Definition Multimedia Interface, HDMI Trade dress and the HDMI Logos are trademarks or registered trademarks of HDMI Licensing Administrator, Inc.
Specifications
Connectors
Physical Properties
Miscellaneous
Package Contents
Purchasing Information

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SECTION 1 - HERO IMAGE

SECTION 2 - HERO HEADLINE & SUBLINE
SECTION 3 - INTRO TEXT
Protect Critical SFP Ports from Tampering, Damage or Unauthorised Access
The Lindy SFP Port Blocker provides a fast, effective way to physically secure unused SFP (Small Form-factor Pluggable) network ports. These compact blockers are ideal for safeguarding fibre infrastructure in sensitive IT environments, AV-over-IP setups, and networked installations where access control is essential.
By preventing unauthorised connections, accidental cable insertions or foreign object intrusion, Lindy SFP Port Blockers reduce the risk of port damage and potential downtime. A robust insertion mechanism keeps each blocker firmly in place, with colour-coded keys ensuring only authorised removal. Additional keys and blocker packs are also available.
SECTION DIVIDER LINE
SECTION 4 - AT A GLANCE
Physical Network Access Control
Blocks unauthorised SFP port use and deters accidental cable insertion
Fibre-Ready Protection
Ideal for delicate SFP connections in enterprise and AV-over-IP systems
Quick Installation
Tool-free deployment – install or remove in seconds
Visual Cue
Indicates unused ports or identifies disconnected endpoints
Low Cost, High Scalability
Ideal for large rollouts with minimal overhead
Latching Design
Mimics the clip action of real connectors – for a secure hold
SECTION DIVIDER LINE
SECTION 5 – HOW IT WORKS

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SECTION 8 - TYPICAL SECTORS
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SECTION 9 - APPLICATIONS
Data Centres & Enterprise Network
Protect switchgear, routers and critical optical interfaces from disruption.
Education & Public Sector
Prevent tampering with fibre links in classrooms, libraries and shared facilities.
Retail & Hospitality AV Installations
Secure fibre-based AV equipment and signage systems in publicly accessible locations.
Facilities / Infrastructure
Visually mark inactive ports for future provisioning
Libraries / Shared Workspaces
Block unauthorised connections in public computing environments.
Healthcare & Labs
Protect equipment in clinical environments from unauthorised connections.
SECTION DIVIDER LINE
SECTION 10 - SUMMARY / CONCLUSION
Lindy SFP Port Blockers deliver precise physical control over fibre ports, helping IT and AV professionals reduce risk and maintain infrastructure integrity. Easy to deploy, visually obvious and highly scalable, they’re the smart choice for any network where protection starts at the port.
SFP Port Blocker Kit
10 x SFP Port Locks, 1x Key
SFP Port Blocker
1x Key Only
SFP Port Blocker
20x Locks Only
SECTION DIVIDER LINE
SECTION 1 - HERO IMAGE

SECTION 2 - HERO HEADLINE & SUBLINE
SECTION 3 - INTRO TEXT
Protect Critical SFP Ports from Tampering, Damage or Unauthorised Access
The Lindy SFP Port Blocker provides a fast, effective way to physically secure unused SFP (Small Form-factor Pluggable) network ports. These compact blockers are ideal for safeguarding fibre infrastructure in sensitive IT environments, AV-over-IP setups, and networked installations where access control is essential.
By preventing unauthorised connections, accidental cable insertions or foreign object intrusion, Lindy SFP Port Blockers reduce the risk of port damage and potential downtime. A robust insertion mechanism keeps each blocker firmly in place, with colour-coded keys ensuring only authorised removal. Additional keys and blocker packs are also available.
SECTION DIVIDER LINE
SECTION 4 - AT A GLANCE
Physical Network Access Control
Blocks unauthorised SFP port use and deters accidental cable insertion
Fibre-Ready Protection
Ideal for delicate SFP connections in enterprise and AV-over-IP systems
Quick Installation
Tool-free deployment – install or remove in seconds
Visual Cue
Indicates unused ports or identifies disconnected endpoints
Low Cost, High Scalability
Ideal for large rollouts with minimal overhead
Latching Design
Mimics the clip action of real connectors – for a secure hold
SECTION DIVIDER LINE
SECTION 5 – HOW IT WORKS

SECTION DIVIDER LINE
SECTION 8 - TYPICAL SECTORS
SECTION DIVIDER LINE
SECTION 9 - APPLICATIONS
Data Centres & Enterprise Network
Protect switchgear, routers and critical optical interfaces from disruption.
Education & Public Sector
Prevent tampering with fibre links in classrooms, libraries and shared facilities.
Retail & Hospitality AV Installations
Secure fibre-based AV equipment and signage systems in publicly accessible locations.
Facilities / Infrastructure
Visually mark inactive ports for future provisioning
Libraries / Shared Workspaces
Block unauthorised connections in public computing environments.
Healthcare & Labs
Protect equipment in clinical environments from unauthorised connections.
SECTION DIVIDER LINE
SECTION 10 - SUMMARY / CONCLUSION
Lindy SFP Port Blockers deliver precise physical control over fibre ports, helping IT and AV professionals reduce risk and maintain infrastructure integrity. Easy to deploy, visually obvious and highly scalable, they’re the smart choice for any network where protection starts at the port.
SFP Port Blocker Kit
10 x SFP Port Locks, 1x Key
SFP Port Blocker
1x Key Only
SFP Port Blocker
20x Locks Only
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