The LokSound by ESU Adaptor Board for LokSound L Select and V4.0 provides the suitable connections for your LokSound L V4.0 decoder with pin connections. The decoder can be plugged directly into the socket terminal strip. All functions of the locomotive can be wired to soldering pads on the adapter board. Thus wiring is a breeze and, if necessary, the decoder can easily be exchanged. The adapter board is fixed with screws to the model. The Adaptor Board for LokSound L Select and V4.0 is part of the broad assortment of ESU DCC accessories.WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov