A connector assembly for use in a downhole tool string comprising: an axis (Ax); an annular male sub having an upstream end profiled for attachment to a first downhole tool, (56, 58) a downstream end, and a protrusion on an outer surface; an annular female sub having an upstream end adapted for insertion of the downstream end of the male sub, a downstream end profiled for attachment to a second downhole tool, and a sidewall having an aperture that receives the protrusion when the male sub is inserted into the upstream end; a socket assembly in the male sub that comprises, receptacles arranged along a path that circumscribes the axis (Ax), and signal leads that are connected to each of the receptacles; and a plug assembly in the female sub that comprises, conductor elements that each engage a one of the receptacles when the annular male sub and the annular female sub are latched to one another, and signal leads that are connected to each of the conductor elements, and that are in respective communication with the signal leads connected to the receptacles; wherein the socket and plug assemblies (68, 106) comprise an electrical wet connect when the conductor elements engage the receptacles; and wherein the signal leads connected to the receptacles are configured to be in signal communication with the first downhole tool, and wherein the signal leads connected to the conductor elements are configured to be in signal communication with the second downhole tool, and the connector assembly being configured such that the first and second downhole tools are in signal communication via the electrical wet connection, characterized in that the plug assembly further comprises insulating tabs disposed between adjacent ones of the conductor elements that occupy spaces between adjacent receptacles when the conductor elements engage the receptacles and define electrically insulating barriers in the spaces. an axis (Ax); an annular male sub having an upstream end profiled for attachment to a first downhole tool, (56, 58) a downstream end, and a protrusion on an outer surface; an annular female sub having an upstream end adapted for insertion of the downstream end of the male sub, a downstream end profiled for attachment to a second downhole tool, and a sidewall having an aperture that receives the protrusion when the male sub is inserted into the upstream end; a socket assembly in the male sub that comprises, receptacles arranged along a path that circumscribes the axis (Ax), and signal leads that are connected to each of the receptacles; and receptacles arranged along a path that circumscribes the axis (Ax), and signal leads that are connected to each of the receptacles; and a plug assembly in the female sub that comprises, conductor elements that each engage a one of the receptacles when the annular male sub and the annular female sub are latched to one another, and signal leads that are connected to each of the conductor elements, and that are in respective communication with the signal leads connected to the receptacles; conductor elements that each engage a one of the receptacles when the annular male sub and the annular female sub are latched to one another, and signal leads that are connected to each of the conductor elements, and that are in respective communication with the signal leads connected to the receptacles; wherein the socket and plug assemblies (68, 106) comprise an electrical wet connect when the conductor elements engage the receptacles; and wherein the signal leads connected to the receptacles are configured to be in signal communication with the first downhole tool, and wherein the signal leads connected to the conductor elements are configured to be in signal communication with the second downhole tool, and the connector assembly being configured such that the first and second downhole tools are in signal communication via the electrical wet connection, characterized in that the plug assembly further comprises insulating tabs disposed between adjacent ones of the conductor elements that occupy spaces between adjacent receptacles when the conductor elements engage the receptacles and define electrically insulating barriers in the spaces.