An electrical connector socket comprising a housing having a front face configured to mate with a corresponding face of a corresponding plug; a plurality of electrical connector pins mounted on a mounting assembly inside the housing, the mounting assembly being movable in a direction substantially perpendicular to the front face; wherein: the mounting assembly includes a magnetic member (12, 12') configured to interact with a corresponding plug-side magnetic member of the plug to establish a magnetic attraction force, to urge the movable mounting assembly towards the front face to a coupling position in which the connector pins protrude through corresponding openings in the front face; the mounting assembly further includes a resilient member configured to exert a restoring force on the mounting assembly, to urge the mounting assembly towards a rest position in which the connector pins do not protrude from the front face, wherein the mounting assembly includes a magnet holder for mounting the magnetic member (12; 12'); characterised by: the front face having a locating pin, protruding from the front face, arranged in a centre portion of the front face and being configured to mechanically match with the plug; and the magnet holder having an opening, through which the locating pin extends such that the mounting assembly is movable relative to the locating pin. a housing having a front face configured to mate with a corresponding face of a corresponding plug; a plurality of electrical connector pins mounted on a mounting assembly inside the housing, the mounting assembly being movable in a direction substantially perpendicular to the front face; wherein: the mounting assembly includes a magnetic member (12, 12') configured to interact with a corresponding plug-side magnetic member of the plug to establish a magnetic attraction force, to urge the movable mounting assembly towards the front face to a coupling position in which the connector pins protrude through corresponding openings in the front face; the mounting assembly further includes a resilient member configured to exert a restoring force on the mounting assembly, to urge the mounting assembly towards a rest position in which the connector pins do not protrude from the front face, wherein the mounting assembly includes a magnet holder for mounting the magnetic member (12; 12'); characterised by: the front face having a locating pin, protruding from the front face, arranged in a centre portion of the front face and being configured to mechanically match with the plug; and the magnet holder having an opening, through which the locating pin extends such that the mounting assembly is movable relative to the locating pin. the mounting assembly includes a magnetic member (12, 12') configured to interact with a corresponding plug-side magnetic member of the plug to establish a magnetic attraction force, to urge the movable mounting assembly towards the front face to a coupling position in which the connector pins protrude through corresponding openings in the front face; the mounting assembly further includes a resilient member configured to exert a restoring force on the mounting assembly, to urge the mounting assembly towards a rest position in which the connector pins do not protrude from the front face, wherein the mounting assembly includes a magnet holder for mounting the magnetic member (12; 12'); characterised by: the front face having a locating pin, protruding from the front face, arranged in a centre portion of the front face and being configured to mechanically match with the plug; and the magnet holder having an opening, through which the locating pin extends such that the mounting assembly is movable relative to the locating pin. the front face having a locating pin, protruding from the front face, arranged in a centre portion of the front face and being configured to mechanically match with the plug; and the magnet holder having an opening, through which the locating pin extends such that the mounting assembly is movable relative to the locating pin.