This Apple MFi Certified Lightning to USB Sync and Charging cable lets you connect you iPhone, iPad, or iPod with Lightning connector to charge your device or sync with your media library. What does it mean for "Apple MFi Certified" and how important it is? Apple MFi certification is a license shown that Apple (Apple Inc.) has authorized accessory manufacturers to mark the MFi logo on their products. MFi is the abbreviation of Made for iPod, Made for iPhone, and Made for iPad. Apple insures a specific and mandatory requirement: the functional accessories for Apple products sold by all authorized reseller must be certified and have the MFi license. Or, Apple will not make any warranty if using the accessories without authorization to cause damage for any Apple product.