RKbus1 RKbus2 RKbus3 RKbus4. The PCB is compact - RKbus1 - 60x22mm, RKbus2 - 120x22mm, RKbus3 - 120x22mm, RKbus4 - 120x22mm. Ideal for model railway lighting and DCC circuits. Uses a high quality, professional, double sided PCB with silkscreen layer.
