What are the Power Adapters Specifications for the USB 2.0 4-Port Cube? (PID 10067, 10065, 10066)

5V, 2A adapter. 3.5mm OD 1mm ID

And if without adapter,the total power is 500mAh for 4 ports.

And if with 5V 2A adapter,each port is about 500mAh