4Pin Header on Gigabyte Windforce GTX 1080, is it for LED or Fan?

[noro24]

Hi, recently i got new gigabyte windforce gtx 1080 https://www.gigabyte.com/Graphics-Card/GV-N1080WF3OC-8GD#kf, and i noticed there is a 4 Pin Header on gpu beside 8pin power connector. i m just wondering why it for, because this GPU has no LED or RGB

if it is for LED or RGB, so in future Can i put Customized LED on that gpu while connecting on that 4 pin header?
will it work?

 

[ingtar33]

that card is supposed to have an 8 pin power plug not a 6 pin... are you sure you have the card you linked us to?

 

[noro24]

that card is supposed to have an 8 pin power plug not a 6 pin... are you sure you have the card you linked us to?

my bad its 8 pin
let me edit..

do u know why 4 pin head beside 8 pin power connector

 

[SkyNetRising]

Can you show a photo?
Could it be fan header for external fan?

Edit: Looks like unused internal fan header.