This has been discussed a lot of times before. KNC terms and conditions say they sell only to businesses. That way, they can offer a limited 1 year warranty rather than the normal 2 year consumer warranty a consumer is entitled to.

I think it's really pissed me off hearing him say "We are selling to the general public, anyone can buy from us" and then their t&c's, written long before this interview, say the exact opposite:
"1.2   The Products are sold for business use only and Purchaser hereby accepts that it has purchased the Products in order to conduct a business."
and
" 6. Limited Warranty
6.1  KnCMiner warrants that the Products, will perform according to the at all times published specification for a period of twelve (12) months from delivery"