I have 2 of the Bitmain Antminer S2 units for sale. All are in overall good shape. Both lived their entire lives in a data center, kept air conditioned and on regulated power. One works fine for weeks at a time and randomly drops one of the boards. When it does, I turned it off and back on and it works fine for another few weeks. I'm including an extra hashing board for it, though you may not need it. The third one does something similar. Works fine for a week or so then randomly drops a whole board (---- ----- across the line) and you get random X at the same time on the other boards. Again, reboot it and it comes back online totally fine for another week or two. All of these hash at the proposed 1TH+ rate most of the time. I'm only selling because I've recently upgraded to S5s. Due to the nature of Bitcoin mining operations, there are no returns available for these items. If you buy both at asking price, shipping is free in the lower United States. Else, $30 per unit. Local pickup in the Tampa Bay, Florida Area preferred and I offer FREE LOCAL PICKUP to anyone willing to do this.
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