The TWN4 Multitech T4DT-FB2BEL Desktop Reader has over 60 different technologies with both 125KHz and 13.56Mhz that they can read, which allows the users the ability to create a persnoalised and secure access control system. This reader contains a powerful SDK, which gives the ability to writie apps which are then executed on the reader. This reader is also infield upgradeable.