Charging 2 Phones Simultaneously: UGREEN USB Charger with dual ports allow you to charge 2 devices at the same time with the total output of 3.1A current. Single port allows Max 2.4A current when connecting only one device. Safe and Reliable: With intelligent chip inside, this USB charger matches the current as your device's need automatically. Over-current, over-voltage and short-circuit protection also effectively protect your smartphones from damage. Broad Compatibility: Work for iPhone XS XR X, iPhone 8 7 Plus 6S 6 5, Samsung Galaxy S10 S9 S8 S8+, Galaxy S7 S6 Edge, Note8, etc. Portable Size: Compact size and foldable plug make this charger easy to carry for travel storage.