[b]What amount needed for hardware mining?[/b]

[Jafri101]

What amount approx: a miner needs to setup his own mining system with high hash rates that could be profitable for him. Assume electricity price low as 4cents/kw. How much amount he should have to have his own mining hardware system??

[Xanidas]

Take a look at this: https://shop.bitmain.com/main.htm?lang=en

The s9 is the best for today and yes the cost is not a joke and it will take about a year before you reach ROI. Are you willing to wait that long?

[alani123]

Profitability of bitcoin miners is usually calcuated by assuming that you'd be selling at the moment of mining, here's a good calcuator you can use (just input the data). Antminer is one of the few companies manufacturing profitable hardware but there's also GPU mining for altcoins which on occasion can be more profitable, althrough more risky in the long term.

[ranlo]

Take a look at this: https://shop.bitmain.com/main.htm?lang=en

The s9 is the best for today and yes the cost is not a joke and it will take about a year before you reach ROI. Are you willing to wait that long?

"About a year" assumes:

1) BTC doesn't crash
2) Hardware remains at 100% operating efficiency (impossible to do)

The most likely scenario is your costs are going to be much higher than expected, your hardware is going to have days/weeks offline, and may even burn out before you ROI. It is a very risky endeavor.