Because you can never have enough USB cables. The best USB cable is the one you have with you. This 3-foot (about one meter) cable is compact and easy to carry or stash where you need it. This cable's got a micro-USB connector at one end, for tablets, e-readers, smartphones and a host of devices too numerous to count; and a Type A standard USB plug at the other end, for connecting to USB chargers or the USB port of your computer.