I know many things are involve in starting mining of Bitcoin. I have rise $5000 because I have made up my mind to start this business.i have also made some inquiries to buy 2nd hand s9 units. because 2eus BTC is selling used unite. I have also thought about other expenses like Electricity cost in my area and also the maintenance cost in cause things went wrong on the process of mining.
I have also decided to buy some fairly used equipments to save cost, so that can start Bitcoin mining. I know by God grace, I will be lucky to get a fairly used equipment that will not give me problem in short period of time after buying them.
Apart from the Asic device, taking care of electricity and the small capital at hand and fairly used equipments I bought, what next do I need to have before going into mining of Bitcoin ?
Do you want to buy this ASIC
https://www.hashrate.no/asics/s9If you buy them for $30 in bulk, and with free electricity, you'll have a ROI in 50-70 days. You will still break some asics, so I would count on 70-80 days. Do you have free electricity?
If not, then it's a bad idea.
Of course, you can set up each ASIC in solo mining and catch your luck.