Question Asrock z590 Extreme wifi6e Unknown header?

[xMrFinchx]

Asrock Z590 Extreme WiFi 6e

I have this header here and I have no idea what it is. Isn't marked in the manual and I can't really find anything about it. Kind of looks like an argb header but who knows.... any ideas?
Edit :Okay the picture works now. Lol.
Board

 

[ThatVietGuy]

Are you referring the the TB1 header? That's labeled as the "Thunderbolt AIC Connector (TB1)" in the manual.

 

[xMrFinchx]

Are you referring the the TB1 header? That's labeled as the "Thunderbolt AIC Connector (TB1)" in the manual.

Are you referring the the TB1 header? That's labeled as the "Thunderbolt AIC Connector (TB1)" in the manual.

No its a 3pin directly above the fan/waterpump header on the bottom of the board. Its not shown on the page in my manual.

 

[xMrFinchx]

No its a 3pin directly above the fan/waterpump header on the bottom of the board. Its not shown on the page in my manual.

https://ibb.co/qCvBqwJ sorry. Pic didn't show up

 

[xMrFinchx]

Figured it out. Its a Research and development debugging port.