Port blocker Lindy SFP Port Locks Green 20pcs, compatible with SFP, ABS, 20×74.5×5.9 mm

The Lindy SFP Port Blocker Key provides a simple way to secure SFP network ports by blocking physical access. Supplied as a pack of 20 green ABS blockers, each blocker fits into an SFP slot and latches in place to prevent cables, devices or foreign objects from being inserted without permission. The semi-permanent design uses a moulded plastic cap and a dedicated insertion key for installation and removal, and is suited for use in schools, offices, network cabinets and other public or shared environments where visual indication of inactive ports and basic physical protection are required.

Advantages

The SFP Port Blocker is lightweight, made from durable ABS and supplied in a set of 20, offering a uniform colour for easy identification. It provides a quick and reversible way to block access to SFP ports while remaining latched like a normal connector. The included insertion key enables controlled removal so that ports remain protected from accidental or unauthorised insertion of cables or objects.

Suitable for

• Blocking SFP ports on switches and network equipment
• Securing ports in schools and office environments
• Using in network cabinets and public or shared installations

Key specifications

• Brand: Lindy
• Model / MPN: 47913
• EAN: 4002888479134
• Quantity: 20 pieces
• Material: Acrylonitrile Butadiene Styrene (ABS)
• Colour: Green
• Dimensions (per blocker): 20 × 74.5 × 5.9 mm
• Weight (per piece): 0.01 kg

How to use

Attach a blocker to the insertion key, align it with the SFP slot and push until the blocker latches in place. Hold the blocker while removing the key. To remove the blocker, reinsert the key into the blocker until it clicks and then pull the blocker out. The design allows for secure, repeatable installation and controlled removal using the supplied key.

Recommendations

The port blockers provide a basic physical and visual deterrent against tampering but do not prevent a determined attacker from gaining physical access to an SFP port. Use them as part of a wider physical security strategy alongside controlled access to equipment cabinets and supervised environments.