EFB-Elektronik RJ45 Female to RJ45 Female CAT 5e Shielded Network Coupler, Grey 37529,1

In a busy office, a network engineer needs to extend an Ethernet run without pulling new cable. The EFB-Elektronik network coupler clicks two RJ45 patch cables together in seconds, turning a too-short lead into a clean, reliable Gigabit link. Its shielded metal housing and gold-plated contacts keep signal quality high even in dense cable trays.

Key specifications

• Connector A: RJ45 female
• Connector B: RJ45 female
• Category rating: CAT 5e
• Shielding: shielded (FTP/STP compatible)
• Data transfer rate: up to 1000 Mbps (Gigabit Ethernet)
• Wiring standard: TIA/EIA 568-B.2, straight-through pin configuration
• Housing material: ABS plastic, grey
• Contact plating: gold-plated
• PoE support: PoE, PoE+, UPoE compatible
• Operating temperature: -10°C to +50°C
• Insertion cycles: >750
• Impedance: 100 Ohm
• Certifications: RoHS, CE

Why choose it

This coupler is built for daily use. The shielded design reduces electromagnetic interference, while gold-plated contacts resist corrosion and maintain a stable connection over hundreds of mating cycles. It meets CAT 5e standards, so you get full Gigabit speed without re-crimping or replacing existing cabling.

Ideal use cases

• Extending patch cables in server rooms and network closets
• Joining two Ethernet leads for temporary setups or events
• Repairing a damaged connector by cutting and coupling the remaining cable
• Connecting PoE devices such as IP cameras or access points when the cable is slightly short

Good to know

The coupler is in-line and compact, fitting easily into cable management channels. It supports 10/100/1000Base-T networks and is compatible with both shielded and unshielded twisted pair cables. No tools or configuration are needed—just plug and go.