An electrical cable assembly 1 comprising: a housing 2, electrical contacts 3 in the housing 2 connected to a circuit board 4, multiple conductors 5 of an electrical cable 6 connected to the circuit board 4, signal conditioning circuitry 7 on the circuit board 4, the circuitry 7 being interposed between the electrical contacts 3 and the conductors 5, and an insulating holder 8 mounted on the circuit board 4, the contacts 3 extending on the holder 8, and the holder 8 being mounted in a cavity in the housing 2.