NO REFUND ALLOWED SINCE CRYPTO IS VOLATILE.
NO RETURNS WARRANTY COVERS ANY ISSUES.
Profitability may decline as more Asics come online.
Please also consider the estimated delivery time.
(These risks can be related to changes in exchange rate of the cryptocurrency or to changes in the algorithm that is used to mine the cryptocurrency. Or can be related to changes in prices of the miners and machines. You should consider carefully before making a purchase.)
All Miner Serial Number get recording before shipping them out,
Do to recorded fraud having them switched out for non-working miners.
All fraud will be reported to eBay.