Amazing Fans and they come with an adapter to connect them to the 5v argb header on most motherboards now for lighting and odd like gigabytes and etc. . I've used 140mm fans with good airflow, but I've found that if you use the header on the motherboard, it doesn't deliver enough power to spin them very well, maybe my board compared to using a fan adapter directly at the CPU. They're 3-pin, so can't control RPM anyway, which is basically unnecessary for air intake or exhaust. I would definitely buy again.
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