Power adapter Product parameters Product: power adapter Specification: US/EU standard Input standard: AC110-240V 50/60Hz Output standard: 12V-2A Note: Face-rk3399 requires 12V/3A power supply for normal operation. If the current is lower than 2A, it may cause abnormal restart. To ensure normal operation of the equipment, please use 12V power supply with 2A~3A current. It is recommended to use the official firefly power adapter. Picture