EFB RJ45 Blanking Plug, Black, 100-Pack | Dust Protection for Network Ports

Network administrators in data centres and office buildings know that unused RJ45 ports on switches, routers, patch panels, and wall outlets are magnets for dust, dirt, and moisture. Over time, these contaminants can cause intermittent connections, short circuits, or even permanent hardware failure. The EFB RJ45 Blanking Plug (model 37525.2-100) offers a simple, tool-free way to seal off those open ports and keep your network infrastructure clean and protected. This bulk pack contains 100 black plugs, enough to cover every unused port in your facility.

Key specifications

• Product type: RJ45 blanking plug
• Connector compatibility: RJ45 (8P8C)
• Primary function: Port protection against dust, dirt, moisture, and physical damage
• Colour: Black
• Material: High-grade plastic
• Quantity per pack: 100 pieces
• Installation method: Tool-free, push-in
• Reusability: Yes
• Application environment: Indoor
• Design feature: Low profile
• Environmental compliance: RoHS compliant
• Manufacturer: EFB-Elektronik
• MPN: 37525.2-100
• EAN: 4049759227142

Why choose it

These blanking plugs are an inexpensive yet effective way to extend the life of your networking equipment. By blocking unused ports, you prevent dust accumulation that can cause connectivity issues. The low-profile design sits flush with the port, so it won't interfere with adjacent cables or equipment. Made from durable plastic, they can be removed and reused whenever you need to activate a port. Plus, they are RoHS compliant, meeting environmental standards.

Ideal use cases

• Sealing unused RJ45 ports on network switches and routers
• Protecting patch panel ports in structured cabling
• Covering wall outlets in offices and conference rooms
• Preventing contamination in industrial network equipment
• Maintaining cleanliness in data centre environments

Good to know

The plugs are designed for indoor use and can be easily inserted and removed without tools. Their black colour blends seamlessly with most networking hardware. Each pack includes 100 pieces, providing ample coverage for large installations or ongoing maintenance. The high-grade plastic construction ensures durability and long-term protection.