Its unique design allows the HEATKILLER® GPU-X³ GTX465/470 to achieve it's unusual performance: A cooling performance up to par with current CPU waterblocks as well as a compact design and highest-grade materials are the features of the new GPU-X³ series.
The cooling components which are in contact with water are made completely from highly pure electrolytic copper. A specially fine micro-structure was integrated above the GPU. Combined with the low cooling plate remaining thickness an optimal cooling performance is achieved. In all relevant areas insulating spacers are integrated. This allows hassle-free installation of the waterblock.
To keep both flow resistance as well as the overall weight as low as possible, all channels are machined with extremely large diameters. The connection threads on both sided of the waterblock allow versatile integration into the cooling loop.

For use in SLI systems optimized Dual- and Triple SLI connectors are available.

Do you have questions regarding your graphics card's layout? The colleagues at Hardwareluxxx have created a thread in their forum on that topic here.

Technical specifications:
Material: Electrolyte copper, stainless steel, POM
Dimensions (LxWxH): 161,0 x 117,0 x 11,5mm
Weight: 750g
Connection threads: 4x G1/4" (DIN EN ISO 228-1)
Pressure tested: 5 bar
Compatible with: Nvidia GTX465, GTX470 (reference design)

Extent of delivery:
1x HEATKILLER® GPU-X³ GTX465/470
1x Mounting material
1x German illustrated manual