The two major advantages of this desktop charger 4 USB ports are non-slip rubber band on the underside of the device and its two ports iSmart detecting the current required to charge and therefore can reduce the charging time. Non-slip backing gives the device a better stability and lempêche drag one side or the other of the office as soon quon leffleure. For points to perfect, the French translation of the leaflet actually part. Given the simplicity of the device, it is not very serious. To have the perfect product, we could add one or two small holes on the underside, allowing linsertion dune screw head. So we could easily fix the unit on a vertical wall and thus save space on the desktop.