I am completely satisfied with the product, in normal work state, it creates 57 GHS and in overclocked mode he gets his 63 GHS. The smaller lower cooling is unfavorable, the miner should have as the gridseed and rock miner a larger heatsink on the bottom, because that is at its warmest, if not very hot. The cooling on the top is good. The volume is acceptable. Quieter than a gridssed fan.
