Gefen CAT5e cables will guarantee optimal video quality and performance when using Gefen CAT5 extension products. This shielded CAT5 is terminated into the specialized RJ45 connectors to ground the cable. Shielded cable was designed to prevent strong sources of Electromagnetic Interference, or (EMI), from effecting the ability of the cable to transmit data. In many buildings, there are common sources of this EMI. Generators, Elevator motors, and many types of lighting will produce strong EMI that can pass through the cable, corrupting your data and shutting down communication. The Shielding in the wire blocks this energy from getting through.
