We are BTC miner manufacturer in China. Now we are looking for old A1 1.5TH/S and 2TH/S , S4 , S4+ for our local big farm. Sincere the rate is down and difficulty increasing. Most A1 1T, 1.5, and 2th, S3, S4 already stop working in many country.
We hope buy these kind of miner for our big farm, we have cheaper electric cost.
If you have , pls contact with us as soon as possible.
Skype: amanda2007520
webchat: 326103531
Thanks,