Bitmain AntMiner U1 USB 1.6GH/s Bitcoin Miner Hashes at 1.6GH/s. Possible to overclock to ~2.2GH/s. Extremely low power consumption at 2 Watts Connects to a standard USB Port. Requires 0.5Amps of power. Fully supported in CGMiner. Contact us with any technical questions. Nearly 5 times faster then comparable 333GH/s USB miners.