It is the coolit systems dual drive bay cooler. They are supposed to have 2x80mm fans blowing through the radiator (which is only 80mm tall to fit in 2 drive bays, I have put the word on that they should build a tri-bay cooler with 120mm fans and they may next) but that is noisy. So I ripped the unit apart and stuck 2x120mm push/pull fans on and it is now virtually silent. They idle at 38-40 (air temp is about 38-35 here at the mo) and under load I have yet to see more than 60..normally 55-58.
It is real good, both cards are now also single slot. Pity my mobo has died :( so I have retconned to my older mobo
The Unit (note 2/3 height radiator in between fans)
My very tidy rig :p