I have an antminer s3/s3+ and an antminer s3 that has been upgraded from an s1 but don't have the adapter board for the s1 controller. I have swapped an s3 controller onto the upgraded s1 miner and it hashes fine. I run them slightly underclocked so I can run them next to my s5 but they will run at stock speeds. Slimming down my electric bill due to running a/c in my house.
I am looking to trade for some usb miners. I will accept block erupters, antminer u1/u2, or any nanofury/red fury variant. Bi Fury and Hex fury is welcome as well. I'm looking to deal in the USA only and trade includes shipping (no charge) so keep that in mind with your offers.