The invention relates inter alia to a device for connecting two or more cable ends, which device comprises: --an insertion bush for inserting the two core ends, wherein in use the insertion bus provides conductive contact between the two cores; --an insulator arranged round the insertion bush, --a field control layer arranged round the insulator, --a conductive layer arranged round the field control layer, wherein in use the conductive layer provides conductive contact between the two earth shields, and --a protective sleeve, --fixing means for fixing the cable ends to the device; wherein in use the insulator connects to the insulating sheaths, the field control layer to the field control sheaths, the conductive layer to the earth shields and the protective sleeve to the protective sheaths. The invention further relates to a method for connecting two cable ends or for connecting a cable end to an end element.