Whether mobile phone, MP3 player or digital camera, all devices have their own power supply unit. This means having an extensive collection of various power supply units. But many newer models can be supplied with power via a USB connection for charging the batteries. Only a suitable connection cable is required for this. Two connectors are always available with the Gira USB power supply. In this way two devices can be connected simultaneously. That's especially practical for example when shortly before going on a trip both the mobile phone and the camera need to be charged. Both devices only have to be connected with the Gira USB power supply via a USB cable. Searching for the right power supply unit is no longer necessary.