Hello, I am the head technician over at miningstore.co, we are currently building and selling professional mining rigs based out of Raleigh, North Carolina. Each rig comes equipped with 8 graphics cards running at 214 MH/s and Ethos, an ethereum mining software, pre-installed. You can check out our website using this link:
http://lddy.no/ih6 If you have any more questions please feel free to contact me at 919-624-3675.