To reliably supply power to peripheral devices of a computer through a central power source to be controlled by a computer.

In the arrangement for supply power to the peripheral devices of an electronic unit (1) having at least one data transmission interface, the power is supplied to the peripheral devices (2, 3 and 4) of the electronic unit (1) having at least one data transmission interface, and this arrangement comprises at least one socket (14), a trunk connection plug (12), and a data transmission interface (10) for controlling the connection/disconnection to/from the socket (14).