RJ45 Couplers
FAQs
An RJ45 coupler is used to connect two Ethernet cables together, effectively extending the length of a network cable without replacing it. This makes it a practical solution for structured cabling installations where longer cable runs are required or additional flexibility is needed.
High quality RJ45 couplers are designed to maintain signal integrity and minimise data loss, ensuring stable network performance. However, using low quality couplers or mismatched cable categories can lead to reduced speeds or interference, so it’s important to select the correct specification for your network.
RJ45 couplers are available in different categories such as Cat5e, Cat6, and Cat6A, as well as shielded and unshielded versions. Shielded couplers are ideal for environments with high electromagnetic interference, while unshielded options are commonly used in standard office or home networks.
RJ45 couplers are best used when you need a quick and cost-effective way to extend or repair an existing Ethernet connection. They are particularly useful in temporary setups, office reconfigurations, or situations where running a new cable is impractical or time-consuming.