... main function of By reading plugged into USB, SD / MMC / XD interface storage devices, play ... U disk, USB interface, mobile hard disk, SD / MMC / XD card, storage devices and can achieve the inter- ... disk, U disk and other direct broadcastSD Card InterfaceSD/MMC/XD InterfaceCan support different storage ... size of the SD / MMC / XD CardAudio Video InterfaceA / ...