Question Question about open/unused fan splitter/argb splitter head, is it safe?

Jun 3, 2020
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Hi, i would like to ask the community if it is safe to have an unused and open fan header on my splitter. My current argb/fan splitter is 1 to 4, however, I only need to use 2 out of those 4 headers on the splitter. is it okay to leave the other two unused?