SP30 will be 2400 Watts for 6 TH/s!!!!
That's simply not true.
Power supply costs and electrical costs negate the miner initial cost.
Also simply not true. A 750w atx psu is only $50 and monthly electricity costs per miner is another $50/month @ 0.1/kwh.
Rboxes will roi before september sp30s begin shipping..