Yeah, they look similar, but this pattern is so commonly, and functionally used that I'm surprised they would make this claim. As it turns out, this is one of

Yeah, they look similar, but this pattern is so commonly, and functionally used that I'm surprised they would make this claim. As it turns out, this is one of the most popular patterns to use for a cutout for fan grilles on fans, particularly 40mm and under. You might find this exact pattern on anything from air quality sensors to battery chargers to server power supplies. The reason is simple - a large number of computer fans have the support struts arranged around the hub in this pattern, and putting the grill spokes there happens to reduce airflow obstruction.