Ethernet technology remains one of the most reliable methods for connecting devices in homes, offices, and industrial environments. However, every network designer must understand that Ethernet cables have distance limitations that can affect performance. Standard copper Ethernet cables such as Cat5e, Cat6, and Cat6a generally support a maximum length of 100 meters before signal quality begins to degrade. Beyond this range, users may experience slower speeds, increased latency, or unstable connections. These limitations exist because electrical signals weaken as they travel through copper conductors. Knowing the practical limits of Ethernet cabling helps organizations create networks that maintain high performance while avoiding unnecessary troubleshooting and connectivity issues.