I am trying to work out if an OV Chipcard is able to be used on trains going from Amsterdam to say Rotterdam, Kinderdijk, Delft; or is only used within Amsterdam.
An OV chipcard can be used for most if not all public transport (bus, train, trams, subway) in The Netherlands. However, there are personalized cards and ones which just work as a money card, as it were. To use one on trains I believe it has to have a minimum value of €20.