work with iPhone sync cable?

http://www1.canadacomputers.com/ProductImages/001537/594.jpg

Will this cable work with iPhone sync cable or will the length diminish its effectiveness at syncing or charging? I find the default sync cable that comes with the iPhone just a tad short, so a 6' extension is a bit of overkill.

in reference to: Canada Computers - Cables & Adapters > USB > USB Cables : iCAN USB Extension Cable A/A - 6'. (view on Google Sidewiki)