Blackarrow Prospero X-3: 1,020 Gh/s @ 0.50W/Gh Best ASIC Miner Black Arrow Bitcoin Black Arrow Prospero X-3 Blackarrow Ethernet connectivity, Web interface for configuration and graphic reports of mining activity 1000 Gh/s Bitcoin Asic Miner Low power per Gigahash, Supports Stratum protocol Easy to use, Out of the box functionality