The short answer is Yes. The Antminer S19 is profitable but it’s not the most profitable miner in the market right now compared to Antminer L7 for Litecoin and Dogecoin. It’s the affordable one. And Yes it’s profitable for Long term investment plan.
It’s the popular one in mining market, S19 series mine Bitcoin , Bitcoincash, and DGB coin. It consume only 3k watt and generate 0.0004 BTC daily.
The total estimated amount of bitcoin for 3 years is 0.4 BTC, You can calculate the reward by expecting the future price of BTC market , so you can sell your Bitcoin reward for 50k -100k $ price. This machine can run for 3 years at very low defected rate.
We in Hashrate Farm provides hosting service and we sell this miner with hosting contract for up to 2 years. we provide insurance , maintenance, and full management.