https://www.cryptocompare.com/mining/bitmain/antminer-u3-sha256-63ghs/
Antminer U3 SHA256 63GH/s Mining USB - Reviews & Features | CryptoCompare.com
The Bitmain Antminer U3 is a neat USB connectable mining device. Although the product is difficult to set up and has had compatibility issues with CG miner -...
antminer u3sha256