This is a compact unit that I use to charge my cell phone and Garmin Nuvi 660 GPS using the two DC outlets, and to charge my Ipod Nano and Palm TX using the two USB outlets. I purchased a DC outlet extension cord at Radio Shack, and plug the charger into this so that I can position the charger right next to my seat.I have tried various other chargers, and this is the most convenient one that I have found. In addition, the charger's capacity is sufficient to handle all of my gadgets being charged simultaneously.Update July 22, 2009: Some months ago I replaced my Palm TX with an iPod Touch 2G. This unit charges it just fine using the same USB cable that I use to charge the Touch on my laptop.Update August 23, 2009: I now charge my new BlackBerry Tour on this unit.Update October 10, 2010: I just ordered my third unit--not because I had a problem with the other two, but because I wanted one for each car. Three years later my original unit is working just fine, as is the secind unit that I purchased a year after that. This is definitely a quality product that has performed well and held up well.Update December 3, 2010: I just received my fourth unit that I am giving to one of my children to use in their car. This is a quality unit, and I have not had any problems with any of the units that I have bought.Update August 1, 2012: Still using all four units without any problems. I have inserted a Powergen USB car charger into one of the 12V sockets, so now I have 4 USB ports--which I need for an iPad 3, two iPhones 4S, and a Kindle 3.