It is advised to always go for a certified supplier to Buy MicroBT Whatsminer M30S in Canada. At GD Supplies we are the certified and most-chosen seller of MicroBT Whatsminer M30S Miner. None of our Whatsminer M30S Mining Machine has ever shown any performance issues. You can trust us to Buy MicroBT Whatsminer M30S miner. view: https://www.gdsupplies.ca/products/microbt-whatsminer-m30s