These colourful cables are especially for devices with a micro usb connection such as smartphones and tablets so you can connect them to pcs or notebooks with a usb a connector the usb 20 cables allow fast data exchange between devices such as your smartphone and your pc update your contacts and appointments transfer music and photos and charge your smartphone at the same time direct power supply and battery recharging via a usb charger or the usb socket on a notebook or pc elegant and robust al