They state that the kit is NONREFUNDABLE AFTER PURCHASE. Why? What are they hiding? The fact they they are a nonreputable company who only wants your money? They take your money, and say thank you and screw off now and never call us again?
DO NOT BUY AN ASIC! I keep telling you idiots and you never learn!!!
Bitmaintech have always delivered. This upgrade kit is hash boards and fixings to diy your S1 chassis to S3 like performance. Probably non refundable because potential for damage quite high when diy'ing the bits and bobs together.