it took almost two weeks for their replay after a couple of emails we exchanged before
they said that X6 upgrade cost 825 usd and it could take 8 weeks to be delivered, becacuse they are waiting to get more orders, which is understandable
but after my last email to them - no response
If they want to get more orders together, I'm game. I emailed them from their site and waiting for a response. I realize this could be used to upgrade my C1s, and I have a pile of them. So I could put in a big order for these if they work in an Antminer C1. They should. I think they are all the same boards and the C1s just had the water cooling blocks instead of the fins.