I bought one that come with UK AC Adapter, I need to get another AC Adapter to use in USA.
Can someone tell me which adapter fit the Beelink GT1 TV Box?
Actually you don't have to buy a new AC adapter!
You can simply use a standard/regular converter
from UK plug
to USA plug.
This solution is much cheaper than a new AC adapter.
The only thing you have to check is whether the AC adapter that you will receive has a dynamic input voltage 100-250V. (because as you well know in the USA the standard is 110V as opposed to the 220V-240V in the UK)
(i can confirm that the voltage of my EU adapter is dynamic: 100-250V --> so the EU adapter is compatible also to the USA electric standard.)
# By the way if you insist on a new AC adapter then the amperage should be at least: 2A