ASIC devices are designated for cryptocurrency mining. They have a much better hashrate to the energy consumption rate and outperforms GPU devices in this regard.
The Canaan AvalonMiner 841 was produced by Canaan and released in 2018. This miner consumes 1290W, producing 13.6 Th/s of hashrate with the sha-256 algorithm, which makes this device almost (if not at all) useless. We do not recommend buying this device for mining nowadays.
The most profitable coins to mine using AvalonMiner 841: