Note I sent a pm to you.
Hello,
I have found larger quantity of used S9s 13.5TH/S for 436USD (inc. shipping) per miner.
Does it worth buying them, I have free electricity up to 960kWh.
Also there is a problem, there are used s9s .. ROI per unit it's 4.6 months with the current profit. Can one used S9s works 24/7 for minimum of 5 months?
Dude you want used ones 200 with a psu is easy to find.
First off what country are you in?
Second how hot is your space?
Do you have the correct wire setup?
If you are USA based I could help you fairly easy.
If you not in USA you should work with a broker
OffordScott is good.
He has a link here.
https://bitcointalk.org/index.php?topic=5138318.0he also has telegram channel.
on telegram.