This model miner machine is used condition one Model AvalonMiner 1246 from Canaan mining SHA-256 algorithm with a maximum hashrate of 93Th/s for a power consumption of 3420W. This device integrates the power supply with the enclosure. The device comes with four fans. These fans help in the dissipation of heat from the machine. The fan is designed with a voltage of about 12V and a direct current of 4.5A. This Miner consumes a lot of power. The miner consumes a power of 3420W. This is one of the miners that have great profitability, this is a great choice for mining bitcoin. Please note: Model Avalon 1246 with orignal power supply(do not include power cords ), and the miner required input voltage is 220V. Wrong input voltage may make miner damaged