Marinco introduces the Dual USB charger. An expansion of the durable Sea Link 12 Volt product line, the combination Dual USB features two ports to charge cell phones, tablets and other devices powered by USB's, a blue LED to show that power is available, and a cover to prevent water and dirt from entering the ports. The Dual USB has a 12 to 24 Volt input with a 5 Volt output, a total of 2.1 Ampere output between the two ports. These products are ideal for your USB onboard charging needs and designed for longevity in the marine environment.