Gratifying our prospects is critical to us and we're sorry our products didn’t meet up with your anticipations. Beneath are the main points of our refund and return policy on your reference. Via meticulous engineering and testing, Bitmain has reached an exemplary balance involving cooling efficiency and noise reduction https://seconthandbitmainantminer98631.ampedpages.com/bitmain-antminer-l9-buy-comparing-prices-and-mining-efficiency-60103519