2 Pack:There are 2 independent packaging boxes in the package,each one has a 10-ports USB charging station in. Certified Safe: MultiProtect safety system and UL certification ensure complete protection for you and your devices.Smart port technology can achieve a maximum of 10 amps of total charging current in 10 ports or a maximum of 2.4 amps of charging speed for a single port (Qualcomm Quick Charge is not supported). Advanced Charging Technology:PowerIQ and VoltageBoost combine to provide the fastest possible charge up to 10 amps overall.Integrated IC control circuit, including overload, overvoltage, overcurrent, short circuit protection, over temperature protection, etcIf the demand of the equipment is overloaded, For example the total current used by the port exceeds 10Athe charging station will automatically short-circuit and power off. Portable Size: 2 pack Mini sized usb charging station can save you valuable desk space while keeping 10 devices in one place