what is a LED SW and do i need it ?

[Desert300]

i got corsairs air 740 case and for the panel connectors i got power sw, rest sw etc but i dont have a hdd led connector which is fine because i know you dont need it but instead i got a LED SW ??, so my question is what is it for ? where does it go and do i need it ?? if not im ok with just the reset, pwr sw and pwr led connectors ?

im using a Z270 MSI mobo

 

[raisonjohn]

The LED SW of the Air 740 is for controlling Corsair HD RGB fans (if you have those). It also takes the place of the HDD LED connector. You can leave it unplugged, if you don't need it.

From: http://www.legitreviews.com/corsair-carbide-air-740-case-review_185791/4

"When setting up the front panel headers, we encountered an unusual header connection. There were the standard, Power LED, Power Switch, and Reset Switch. Missing is the HDD activity LED, but we found the LED SW header in it’s place. Checking the user manual, it says there should be a HDD LED but there is no sign of it. Knowing there is a LED button on the front panel, it makes me wonder what this could be for. We talking with Corsair, and they stated this is used to control the lighting on their new HD/SP fans, we hope to get some in so we can see how this works."

Additional info here: http://forum.corsair.com/v3/showthread.php?t=165781