A cable-end water sealing device includes a water-blocking compound, a receptacle and a sleeve. The receptacle defines an interior cavity for receiving an end portion of a non-water-blocked electrical, optical, or electrical/optical (i.e., hybrid) cable. The receptacle includes a stop member for limiting the insertion depth of the cable, an adjoining interior cavity for receiving and transitioning the cable subcomponents and one or more optional overall EMI shield(s) to the outside of the receptacle, and an injection port for injecting the water-blocking compound into both interior cavities of the receptacle to prevent water from migrating from the end of the cable. One or more of the cable subcomponents may include one or more individual EMI shields. Individual insulating sleeves can be provided to electrically isolate the cable subcomponent EMI shield(s) from the receptacle and overall EMI shield(s). A heat recoverable sleeve can be provided for enclosing the receptacle and overall EMI shield(s) after injection of the water-blocking compound.