I bought this product in anticipation of a three-week stint in Italy during which I would not have access to an American AC plug. I am bringing my MacBook Pro and already have the Apple M8794G/B World Travel Adapter Kit to keep my notebook charged overseas. However, having very recently purchased a DSi (read: this product arrived before the DSi did) I wanted an inexpensive way to charge my DSi while I was away from home. Enter the USB Power Charge Cable Adapter, which seemed like a natural solution, and something that would suffice - but the product is so good that I felt the need to write a review. There are a couple things that make it excellent: a) The price. It's right. Paying less than $6 shipped (in my case it arrived in 2 days with regular shipping from HDE) is spot on for a useful cable like this. b) The make. This cable has a finish which feels remarkably similar to that of the DSi, and the coloring is a match for the matte black DSi. I am also happy to say that the product quickly and easily charges the DSi without any hassle.
Update: More than 4 years in and this product is still going strong and charges my DSi very well. Very glad I purchased it!