Abstract: A housing 5 with a cable access aperture 9 for electrical and data wiring, is slidably fitted into a panel rail 1 with one or more apertures for use in a office panel system, the cable access aperture 9 of the housing then aligned with an aperture in the panel slide, said housing 5 being held in its position by a fastening means 11, the aligned apertures allowing the passage of electrical and data wires.