It can withstand 10 inches of snow with the louvers closed, and there's no limit to the load it can bear with the louvers open.
It's tested and certified to withstand the early stages of hurricane-force winds, with a rating of up to 70 mph with the louvers closed (if properly mounted into the ground) and 80 mph with the louvers open.
For reference, at 60 mph, widespread damage occurs, such as larger trees being blown over and uprooted. Therefore, aoxun louvered pergola is perfectly suitable even for extremely windy areas.