FAILED-product!
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HashFast announces specs for new ASIC: 400GH/s"
Did the HashFash ASIC meet the 400GH/s spec?
Yes. Some could even be overclocked. Icedrill's are still mining.
Did HashFast meet their power consumption specs? Did they meet their deadline? Nope!
Also the Icedrill is still mining, not because of the great HashFail chips, it's because of the cheap power in Iceland. If HashFail was on spec regarding power consumption then you could mine with them in other locations, but considering the power hungry chips you can only mine with them where electricity is 0.04$/kwh.