HDD LED (+) 和 HDD LED (-) 的功能是什么?

这两个接头用于控制硬盘指示灯的输出。分别代表正极(HDD LED (+))和负极(HDD LED (-),配合使用可以显示硬盘状态。(页面15)

From the official Biostar A320mh Motherboard manual, page 15

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