Abstract: The accommodating device for a portable PC (24), particularly for a notebook and for peripheral devices such as a printer (22) and telecommunications devices, comprises a principle power supply unit (26) which can be connected to a voltage network for generating required operating voltages for the peripheral devices from the voltage network, and a separate PC power supply unit (28) which can be connected to the voltage network for generating the required operational voltages for the PC (24). Both power supply units (26,28) are arranged underneath the PC (24). Further, a cooling air flow generator (34) generates a cooling air flow to cool the principle power supply unit (26). The PC power supply unit (28) is arranged in the cooling air flow.