Also, how loud is it (e.g compared to an antminer)?
Don't have my SPL meter handy, but I would take a guess that these miners are 4-8db louder than the Antminer S1's. Quieter compared to the other A1 rig I have, and the Avalon gen 1 miners.Hashing at 950gHs, owing to a few less-than-perfect chips. Wanted to try out the Qiangminer RasPi image on it, but will have to take that rig down to image the SD card. Maybe later today.