I didn't get it my self, but as per the specsheet they can get it with adjusting the power on a modified pic,
Now if you are nt an expert, you can't even admit .
I don't have tools, and even the time, to play with, this is why, I want to sell.
In default mode they are getting between 44 and 48, some times 52gh, depends
On few factors such us the mining pool it self, so don't be angry, smile the life is nice...
Bestalg