They are not all the same. Some cables do not have the pins connected correctly or missing for data transfer and charging. Sometimes it will work on one device and not another. Generally, if the cable is listed as charge/data it will do both. I have bought ten dollar micro usb cables at Walmart that are marked charge/data and they have worked for both on all of my devices. The best thing about buying this cable off the shelf at Walmart in the electronics department is that if for some reason it doesn't work, you can bring it back for refund.
