Collection: Network Couplers & Joiners

A network coupler connects two Ethernet cables together, extending the total cable run without signal amplification. It has two female RJ45 ports and requires no power. It is commonly used when a single cable is not long enough to reach its destination. For longer permanent runs, consider using Network Patch Cables of the appropriate length.

A quality coupler should not significantly reduce speed when used within the total maximum cable length recommended for the cable category. Signal degradation can occur over very long combined runs, so keep the total extended length within standard limits. Pairing with quality Cat6 Patch Cables helps maintain performance.

Couplers are available for different cable categories — Cat5e, Cat6, Cat6a, and so on. For best performance, match the coupler rating to your cable category. Using a lower-rated coupler with a higher-category cable may limit the maximum achievable speed. Browse our Ethernet & Network Cables range for compatible cables.

Standard RJ45 network couplers are designed for copper Ethernet cables and are not compatible with fiber optic cables. Fiber connections require dedicated fiber couplers and connectors. For fiber options, explore our Fiber Optic Cables category which includes compatible accessories.

No. Network couplers are plug-and-play — simply insert one Ethernet cable into each end of the coupler. No crimping tools or specialist knowledge is required. This makes them a quick solution for extending cable runs in any setting.

A coupler is a passive, non-powered connector that simply joins two cables together. A network switch is an active device that manages traffic between multiple devices on a network. If you only need to extend a cable run, a coupler is the simpler and more cost-effective solution.

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