A data cable connector for data transmission having a plug body, which has a cable connection side, a plug connection side and a plug shield, the cable connection side being designed for connecting a shielded data cable having at least one first insulated conductor and a second insulated conductor for data transmission and a wire shield surrounding the first and second insulated conductors (101, 102), and having a first connection channel for the first insulated conductor, a second connection channel for the second insulated conductor and a shield connection for the wire shield; the plug connection side having a contact carrier with contact openings for accommodating first and second contacts (104; 105) which can be connected to the first and second insulated conductors (101, 102), the contact openings being arranged as through openings in the contact carrier running parallel at a contact distance in an axial direction of the data cable connector; an impedance transmitter made from electrically conductive material being arranged in the cable connection side of the data cable connector, in which impedance transmitter the first connection channel and the second connection channel are constructed, electrically conductive material being formed at least in certain sections between the first connection channel and the second connection channel, and the impedance transmitter being constructed adjacently to the contact carrier, openings of the first and the second connection channel (201; 202) facing the contact carrier opening into the through openings of the contact carrier; characterized in that the plug body has a cable inlet with a strain relief clamp and a clamping nut on the cable connection side, wherein the strain relief clamp can be pressed against the impedance transmitter by screwing on the clamping nut and the cable inlet is arranged opposite the connection channels (201, 202) in the impedance transmitter, and wherein the conductor shield is pressed between a surface of the strain relief clamp directed towards the plug connection side and a surface of the impedance transmitter directed towards the cable connection side. the cable connection side being designed for connecting a shielded data cable having at least one first insulated conductor and a second insulated conductor for data transmission and a wire shield surrounding the first and second insulated conductors (101, 102), and having a first connection channel for the first insulated conductor, a second connection channel for the second insulated conductor and a shield connection for the wire shield; the plug connection side having a contact carrier with contact openings for accommodating first and second contacts (104; 105) which can be connected to the first and second insulated conductors (101, 102), the contact openings being arranged as through openings in the contact carrier running parallel at a contact distance in an axial direction of the data cable connector; an impedance transmitter made from electrically conductive material being arranged in the cable connection side of the data cable connector, in which impedance transmitter the first connection channel and the second connection channel are constructed, electrically conductive material being formed at least in certain sections between the first connection channel and the second connection channel, and the impedance transmitter being constructed adjacently to the contact carrier, openings of the first and the second connection channel (201; 202) facing the contact carrier opening into the through openings of the contact carrier; characterized in that the plug body has a cable inlet with a strain relief clamp and a clamping nut on the cable connection side, wherein the strain relief clamp can be pressed against the impedance transmitter by screwing on the clamping nut and the cable inlet is arranged opposite the connection channels (201, 202) in the impedance transmitter, and wherein the conductor shield is pressed between a surface of the strain relief clamp directed towards the plug connection side and a surface of the impedance transmitter directed towards the cable connection side.