QuikVolt Wyoming Cowboys 4-Port USB Car Charger The 4-Port Car Charger from QuikVolt has a 5V/5A output and uses Opti-Charge technology to charge your devices with the power each device needs. The 5V/5A output splits the power between each device that's plugged in. Charge your phone, tablet, or other devices without a special charging port! The colorful light-up ring glows when the Car Charger is plugged in. Each color is coordinated with the Officially Licensed Wyoming Cowboys logo featured on the charger. Each Car Charger is compatible with USB 2.0 devices and is universal for cars, trucks, and buses. CC & CE Certified, UL Listed, and RoHS Compliant