130 Graphic Cards on one Rig

My friend Simon is a cryptomining mad man.
I helped him build this...

That's 130 cards on one rig. He has spent over $70,000 to build it. It's his second rig.
This is the first rig we worked on...

My apologies to the gamers out there but it has been a lot of fun to be part of this build.
Simon has been a wealth of knowledge on the subject of mining.
I just wonder what he'll do for his 3rd rig. I'll keep you posted.