Like i said, build quality is good. The efficiencies are 12 months behind competitors, and therefor the least profitable to run in the long term.  They are always the first miners to unplug.

Just noticed that that they posted new firmware:

https://www.canaan.io/service/447

Ill try it out and post the results.

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Looks like the new firmware added fields for additional pools. No low power mode though . Just normal and performance.

I also see they added:

CGMiner Configuration:

More options text box.

I remember with the older Avalons you you could adjust voltage/frequency/fan speed. Not sure if its possible with this input, don't remember the commands.