Features:

Intelligent USB Port Design: Detects your device automatically to deliver its fastest possible charge speed up to 2.4 amps per port or 7.2 amps overall.

Wide Input Voltage Range: Works with AC 100-240V internationally, compatible with all 5V USB-charged devices like iPad, iPhone, Samsung tab, Smartphone, external battery, Bluetooth speaker, Headset and so on.

Secure USB Charger: Smart IC protects system safety and transmits sufficient and safe current while charging, and prevents the occurrence of accident. Surge protection, temperature control and more advanced safety features keep you and your devices safe.

Fire-Resistant Plastic: High quality outer shell for durability, build-in premium circuitry and microchip ensure device safety.

Ergonomic, Compact and Portable Design: Input voltage suits for international travel, much more space-saving and well-organized while charging your devices.

Note: If a port isn't working properly, it may be because your device has triggered the protective internal safety switch. In order to reset the switch, unplug all cables (including power cable) for 5 minutes and retry.