In some applications with a marginal number of channels, e.g. less than 16 analog readout or less than 128 digital channels, only a single GANDALF module can be used. Therefore, GANDALF portable was designed for mobility, installation and commissioning of local data acquisitions with a single GANDALF module. The designed cover for the GANDALF portable can house one single GANDALF module together with a power supply. The power supply unit is connected to the GANDALF module via small backplane power connector cards. For the data readout with the GANDALF portable, the USB2.0 interface can be used with a desktop computer. For such the GANDALF module USB driver and the USBToolbox for data acquisition have to be installed on the readout PC.