RJ45 connectors, whether single or double face, with keystone jacks, are widely used in structured cabling for networking. Their key features include secure, snap-in installation, compatibility with standard keystone wall plates, and a robust modular design for easy customization. Single face keystone jacks are ideal for individual ports in a compact design, while double face keystone jacks allow for two connections in the same space, maximizing efficiency. These keystones are commonly used in home and office networks, connecting computers, switches, and routers, ensuring reliable, high-speed data transmission for both residential and commercial environments.