8 GPU Mining Rig with 7 Extreme Airflow Case Fan, Aluminum Stackable Miner Case Open Air Frame Unassembled Kit for ETH/ETC/ZCash Ethereum,Bitcoin,and Altcoins(Deluxe) (68GPU+6 Fans)

This thing is the definition of a POS. The directions are trash and the way they engineered this to go together is garbage. Buy Allen keys because the ones they give you strip Save yourself the headache and spend more for something prebuilt or better quality. I'm as calm and laid back as they come and this thing had me wanting to chuck it off my roof in frustration and anger. Seriously dont even waste your time with it.