Full Details from Amazon.com : http://www.amazon.com/gp/product/B007SEZWB8?tag=onigi-20
Koolance VID-NX680 Water Block (NVIDIA GeForce GTX 680 Video Card)
The Koolance VID-NX680 is a full coverage video block for water cooling NVIDIA GeForce GTX 680 cards in single and multi video card configurations
It utilizes a high-performance microfin 05mm design made of solid copper with anti-corrosive nickel plating
Fitting threading is standard G 14 BSPP
For multiple card configurations video connectors are also available
NOTE This product is based on the original reference board layout
