Pandaminers B3 Pro with 8xRX470 - I have like 8 miners at the moment. On top of that I have around 20-25 x 750W Gold Standard Corsair power supplies, around 50 Dell servers power supplies (gold standard) modified to give 6 x 12PIN for GPUs, around 20-30 rack PDUs, around 500 PCI-E risers, and few motherboars.