Answer: Bitcoin mining is profitable with an ASIC in 2021 . As of August 2021, a miner could generate 6.25 coins every 10 minutes. In addition, miners earned transaction fees of between 5% and 10% of the reward after mining a block.3 Mar 2022
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Around 2 to 3 years in practise . After that, either the device has “burned out”. Or it is competing against so many others that it no longer calculates the hashes fast enough to receive a profitable fee.
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