I purchased a ASIC Block Erupter Cube from this company for $1800 about a month ago and the cube is defective. I has not worked since the day I got it. I have 3 other cubes that have been working great that had been purchased from a different company. I have sent multiple support emails through their web site trying to get the issue taken care of and they do not respond back. Has anyone else had any issue with them? Also does anyone know where I can get a replacement main board for the cube. The Cube will run from anywhere from 1min - 45 min then one of the two power ports turns off. I have tried multiple power supplies with no change. I have looked around on the forums and tried everything other then adding a bigger capacitor inline with the power plug, I have not done that because I am not sure what exactly they mean and I can not find any photos of it done.