Mining Calculator Canaan AvalonMiner 1166 Pro

AvalonMiner 1166 Pro is Canaan’s direct response to Bitmain’s dominance in 2020, an attempt to compete in the “workhorse” segment and carve out market share from the Antminer S19 series. This miner is the quintessence of the industrial approach of its time: no frills, no concessions to the home user, just raw hashrate. 81 TH/s was a solid figure at the time, and the machine proved itself as a relatively reliable unit, capable of stable operation in data center conditions. It’s not a flagship, but a strong mid-ranger, designed for mass deployment.

Its main drawback, and essentially its death knell in modern realities, is its monstrous energy appetite. A consumption of 3400 W at 81 TH translates into extremely low energy efficiency at 42 W/TH. This figure ruthlessly sends it to the scrap heap of history for anyone whose electricity isn’t free. Its main enemy is not the Bitcoin network’s difficulty, but the electricity bill. While modern miners fight for every watt, the 1166 Pro simply burns through them without remorse, making it economically unviable in most regions of the world.

Household use is out of the question: 75 dB is the deafening howl of four fans desperately trying to cool the red-hot chip, consuming almost 3.5 kW. The massive and heavy casing (almost 13 kg) is designed exclusively for rack mounting, where noise and heat dissipation are planned overheads. It’s a utilitarian metal box whose sole purpose is to hash, ignoring all side effects.

Today, the AvalonMiner 1166 Pro is of interest only in the secondary market and exclusively to one category of miners – those who have access to free electricity. It can be acquired for a pittance, but the operational costs make it a financial trap for the unprepared user. It’s a living monument to an era when hashrate was valued more than energy efficiency, and a clear example of how quickly mining technology turns yesterday’s heroes into unprofitable scrap metal.