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 Innosilicon A6 LTCMaster was produced by Innosilicon and released in 2018. This miner consumes 1500W, producing 1.23 Gh/s of hashrate with the scrypt algorithm, which makes this device almost (if not at all) useless. We do not recommend buying this device for mining nowadays.