It's just a USB cable to charge its Nintendo 3DS. What to say already great, the device is charging;) The big advantage: It saves the space in the current block for 230V plug. I use it in combination with "anchor 40W 5V / 8A 5-Port USB Travel Charger Adapter". The adapter was also the main reason for this cable. Now only a 230V space is still occupied and I can invite 5 units when needed.