Standard copper is the primary material of this block. Inside its chamber, heat-dissipation channels are built on top of the portions directly over the GPUs, the chamber is topped off with hard Lucite. Fittings' options include High Flow G 1/4 - 1/2", 3/8" and 1/4". At US $135.95, the Danger Den GTX295 V2 water block is priced lower than its counterpart from Koolance.
Source: TPU