Get from Amazon.com : http://www.amazon.com/gp/product/B00NWHT18A?tag=hawaiianlegac-20
AntMiner S4 ~2000Gh/s @ 0.69W/Gh 28nm ASIC Bitcoin Miner
Stock speed of 2000 Ghs
Uses approximately 1400W of power at stock speed
1400W 80PLUS Gold PSU included
C13 power cable required sold separately 15A recommended