GHL power bars

[Aaronreef]

Hello everyone.
I'm looking at adding a plug bar to my P4
I've been offered a powerbar 6D
Can anyone tell me if these bars are worth using on the P4 ? Or should I just get another 6E-PAB

 

[Aaronreef]

Also I've read it connects to the S ports on the P4 ? What cable type is that ?