Hi. I have had problems connecting tablets to PC's. I have found that other cables work including the 4 inch ones that they come with. My question is, is their a difrent type of cable? I am currently talking about the Micro USB. The thing as I see it is this is a 4 wire system. the outer pins 1 & 4 are the 5V connections and the midle two 2 & 3 are the data in and out. So what is the diference between these PC USB to micro USB cables. Can anyone shead any light on this? All companys insist that you use the cable it came with. This can not mean that their are hundreds of cables where a samsing cable would not work with a apple phone (asuming micro USB).