[SOLVED] Wave connections on PCB

[uplifting_mind]

Hello,
I'm wondering what is this waves connection on the PCBs. What is its purpose?

Thanks you.

 

[barry]

Those are added to make traces a specific length. They are particularly important with differential pairs or busses, where you want all the signals to arrive at the destination at the same time (and thus, should be the same length).

 

[FvM]

It's called serpentine routing.