Connector pins JF1 motherboard ↔ F-panel Case (extra pins?)

[fatherboard]

I'm trying to connect the F-Panel of the Silverstone Alta D1 case to JF1 on the Supermicro H13SSL-N motherboard, I bought these cables but they have 4 male pins. I can use the first 2 for the case F-Panel, but I'm left with 2 male pins for each. Did I buy the wrong cables, or are the 2 male pins meant to be used with other connectors elsewhere?



The case F-Panel on the case looks like this


the motherboard JF1:

 

[i386]

This looks looks like a cable you would use for 2 chassis 1 mainboard (something like the "cube" lian li chassis)

 

[fatherboard]

What cable should I use instead? I do not want to end up
Can I safely use the extra pins with a button like this, to turn on the computer

 

[sko]

whatever an "F-Panel" should be, but that connector in the video screenshot is a standard USB-connector. Just plug it into one of the external USB-headers on the board.

 

[i386]

whatever an "F-Panel" should be,

"Frontpanel"