Becare to @gracezhou1993 on telegram : after just 6 months of hosts they decided not to host me anymore forcing me to ship the miner. I shipped to @cryptoboreas and the miner was brooken. These thieves charged me $ 80 for a power supply because it broke the week before, $ 250 for shipping, $ 100 for customs, and they sent me a broken miner. Don't do business with these scammers.