Check out this USB cable that is extremely functional - more than what I’ve seen in the past anyways. It not only opens up in half to reveal itself as a microSD memory card reader, it also doubles up as a charging cable and functions as a data connection cable as well, as long as your device relies on a 5-pin mini USB connection. Available in gray, black, green, orange and blue colors, the ultra-smart USB cable retails for $14 a pop. Since it also works great as a cell phone charm, it makes perfect sense to tote this around with you wherever you go.