Plugable 3-Port 36W USB Smart Charger for Car and Truck Cup Holders (Compatible with Android, Apple iOS, and Windows Mobile Devices) The Plugable Power Cup USB smart charger was designed to fit nearly any car or truck's drink cup holder and be powered off of any standard 12V automotive accessory socket (cigarette lighter). Charges up to 3 devices at the same time, perfect for vehicles that don't have a built in USB charger or when the whole family needs to charge on a road trip! The smart charging cup can provide a powerful 36 watts of power across its 3 USB ports for rapid charging of your mobile devices. It also has a small storage compartment for tucking in loose charging cables or holding small cell phones (like an iPhone 4), eye glasses, pens/pencils, loose coins, E-Cigarettes, etc. 5FT power cable included. Charges almost all Apple iOS, Google Android, and Microsoft Windows Mobile devices. Small Windows tablets like the Dell Venue 8 Pro are also supported. Three dedicated smart charging ports that automatically select the best charging mechanism for the device (Apple 1A, 2.1A, 2.4A, Samsung 2.4A, Android, BC 1.2). Can supply up to 36W (7.2A) total among all 3 ports for rapid device charging. We love our Plugable products and hope you will too. All of our products are backed with a 1-year limited parts and labor warranty and Seattle-based email support.