THERE 4-PORT MICRO-USB TO 4-WAY USB FOR THE I-PHONE WORK'S AWESOME!!!,,,, I CAN NAVIGATE ALL THE OPTION'S WITH A MOUSE,, AND A KEY-BOARD,,, I AM USING THE PHONE TO MAKE A D.I.Y 4K PROJECTOR,,, I REMOVED THE BACK-LIGHT FROM THE LCD SCREEN AND PUT IT WITH A PARABOLIC REFLECTOR WITH A 250-WATT LED LAMP,, AND A SET OF FRESNAL LEN'S,, AND A FOCUS LEN'S IN FRONT OF PROJECTOR,,,,,,,,, I USED AN OLD CHEAPO "QUANTUM" PROJECTOR,, AND UP-GRADED/MODIFIED IT WITH THE NEW PART'S,,, NOW I HAVE A INEXPENSIVE 4K PROJECTOR.