Butterfly Labs BFL Do not buy from these fraudsters Leawood Kansas
This company is a well known fraudster. It's CEO is a convicted lottery scammer. They make promise after promise about delivery but they are total liars. They do not offer refunds but lately in the face of a torrent of customer outrage and a spate of law suits they are now offering refunds after orders are six months old. (If you are lucky!)
Please do your research before giving these people a penny of your money.
Google "Butterfly Labs Class Action"