I think they should first work on those 10%+ rejects we all are dealing with,
it's nice to see a better unit, but it still has these rejects as seen on the pics....
agreed. its unfair to advertise unit such as the rk-box to be running 450-480GH when the actual accepted hashrate is only 390-425GH considering the 9-13% reject rates ive seen
Yeah i agree. I also found excessive thermal paste on some units that was interfering with the chips. Is it necessary to use that much?
But not all RK-Box units are running at 430 GH. Here is one nice unit i am running:

This one is averaging at 450+ now
R3 is suppose to be a lot more stable, will post pictures tonight.