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You are here: » Homepage » Audio & Video » Extenders » HDMI
Amplify HDMI® 18G & IR signals over 50m via Cat.6 cable
The Lindy Cat.6 HDMI® 4K60 & IR Extender with PoC is an effective, reliable solution for extending high quality 4K HDMI® signals over distances up to 50m (164.04ft) with standard Cat.5e/6 network cable. Support for the 2.0 specification allows the transmission of highly detailed 4K Ultra HD resolutions. With support for High-Dynamic Range, video content can be seen with enhanced brightness, greater contrasts of blacks and whites and a much wider colour gamut, perfect for a true home cinema experience or eye-catching digital signage in retail settings. HDCP 2.2 compliance allows 4K video content from copy protected sources such as Blu-Ray movies, media players and streaming services to be viewed without compatibility issues. Support for lossless audio formats including DolbyTrueHD and DTS-HD adds powerful multi-channel sound to video content, providing an enhanced experience and sense of realism for the viewer.
The extender features an HDMI® loop-through output on the transmitter which allows for simultaneous viewing using local and remote displays. This versatility provides a suitable solution for use in various scenarios such as educational presentation systems, home cinema, entertainment systems, or trade shows. The built in EDID dip switch enables the user to control which EDID is taken from either display, making installation and configuration simple ensuring maximum compatibility with HDMI® displays and projectors. PoC allows both power and data signals over a Cat.6 cable in a point to point configuration, adding flexibility as only one power supply is required for both the transmitter and receiver units. Ideal when power outlets are limited.
Featuring IR Pass-through, the source equipment can be seamlessly controlled from the remote displays side of the installation using compatible infrared remote controls. This provides simple and complete control for the user.
Please note: This product is not designed to be used in conjunction with active network equipment and must only be used in a point to point connection.
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 Content
Purchasing Information

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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.
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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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