According to the 3C Certification listing, the Xiaomi NEW-AN90 has support for 5G. The device supports up to 66W fast charging. The listing reveals that the model number of the charger is HW-110600C00.
Sadly the 3C Certification hasn’t revealed anything about the specifications of the device. But as the device has bagged the 3C Certification, more news regarding the device can be expected in the coming days.