Shields, wire connectors, crimping devices, and wire managers. At least some of the shields are used with a cable that includes a jacket surrounding wire pairs, and a different pair shield surrounding each wire pair. Such shields include a compressible member positioned adjacent end portions of a portion of the wire pairs. The compressible member presses a conductive member against the pair shield surrounding each wire pair in the portion of wire pairs. At least some of the wire connectors include a conductive body positionable alongside a selected wire having a connector surrounded circumferentially by an insulating jacket. The body includes a receptacle with a tapered opening defined between first and second edge portions of the body. As a portion of the selected wire passes through the opening into the receptacle, the first and second edge portions cut through the insulating jacket to contact the conductor.