RJ45 connectors are standardized connectors used primarily for networking and telecommunications. They are commonly found on Ethernet cables, which connect devices like computers, routers, and switches. The connector features eight pins that transmit data, allowing for high-speed internet connections. These connectors are designed to fit into Ethernet ports, ensuring a secure and reliable connection. RJ45 connectors are widely used in both residential and commercial settings, making them essential for modern networking. Their versatility and ease of use contribute to their popularity in establishing local area networks (LANs).