As one of its daily deals, iTech Deals offers this Retractable USB to 30-Pin Data/Charging Cable for Apple iPhone 4/4S 2-Pack in White for $3.99 with free shipping ($2/cable). That's the lowest total price we could find for this quantity by $4. This 2.6-foot cable is compatible with 30-pin iPhones, iPads, and iPods. Deal ends today.