Does MangoPi MQ-Quad MCore H618 have Uart? How?

Does MangoPi MQ-Quad MCore H618 have uart?
anyone know how to use it?

what is the UART you means? if for debug port, yes, it’s same as raspibian pi, located at the 40Pin GPIO.
I did use the port to connect my H618 MangoPi to boot armbian.