No, mining profitability is not guaranteed to stay the same over time.
This FFMiner DS19 currently generates a daily profit of approximately $0.00, assuming an electricity cost of $0.00 per kWh.

However, this profit can fluctuate due to various factors such as global hashrate, network difficulty, block reward, and cryptocurrency exchange rates. Be prepared for potential changes in profitability based on these market dynamics.

The FFMiner DS19 has a hashrate of 3.1Th/s for the Blake256R14-dcr algorithm.
Hashrates are only comparable between miners that use the same algorithm.

Yes, the FFMiner DS19 consumes 680W per hour.
Enter your local electricity price in the header preferences to see profitability calculations based on your actual electricity cost.

Electricity expenses are a significant factor in mining profitability. Higher electricity rates can reduce or even eliminate profits, which is why assessing local energy costs is crucial when determining if mining is viable.
With higher electricity costs, investing in a highly efficient miner is even more important.

The lifespan of mining hardware depends on factors such as usage intensity, environmental conditions (temperature, humidity, dust).
Proper maintenance and ideal operating conditions can extend hardware longevity.