In order to charge mobile devices or transfer data between different devices, charging or data cables are often needed whilst out and about. This MFI (Made for iPhone) cable is designed to form a loop which can be quickly and easily attached to and removed from objects such as a keyring. The cable end with the smaller connector is inserted smoothly into the cable end with the USB connector. The magnetic connection is also secured via guide rails, preventing unintentional release and loss during transport. The MFI cable design has been reduced to the essentials, being logical consequence of the desired securing function.