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You are here: » Homepage » Audio & Video » Switches » HDMI
Switch between 3 4K@60Hz source devices when connected to a single display
HDMI® switches are reliable solutions for controlling and switching multiple HDMI® source devices and outputting to a single display.
The Lindy 3 Port HDMI® 18G switch is a compact, high quality solution for effortlessly switching between 3 HDMI® source devices when connected to a single display.
Supporting HDMI® 18G signals, this switch allows for the transmission of detailed 4K Ultra HD resolutions, while additional support for HDR ensures video content features greater contrasts and a much wider colour gamut. This switch is perfect for a premium residential setup, eye-catching digital signage in retail settings or engaging presentations. HDCP 2.2 support ensures there are no compatibility issues with a variety of 4K content from source devices including set top boxes, Blu-Ray players and 4K HDR media players.
This switch also provides efficient, simple switching options for the user, via an included IR remote or push buttons on the main unit. The switch can also identify the active HDMI® source device and automatically switch to this option, providing a useful solution for when the unit is required to be out of sight.
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

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
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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