Lketc Mintforger Dragon 1 Th/s (1000 Gh/s) Sha-256 Asic 28nm Bitcoin Miner 1TH/s ASIC Bitcoin mining machine with highest efficiency, compact form factor and built-in power supply! Start mining Bitcoin and watch your profits rise! Embedded CGMiner with complete stand-alone operation. After configuring it, the machine mines alone without a PC connection required. 900-1000w operation 1TH/s has 4 modules with Coincraft A1 28nm ASIC Chips