How do you make a Ethernet cable longer?

To make an Ethernet cable longer, you can use an Ethernet coupler, which connects two standard Ethernet cables together. Ensure both cables are of the same type (e.g., Cat5e, Cat6) for optimal performance. Alternatively, you can also use a network switch or a powered Ethernet extender to increase the distance the signal can travel without loss. Always check the maximum distance limitations for Ethernet cables to maintain quality connectivity.