The Koolance VID-AR587 is a combined GPU and memory block for high-end water cooling of ATI Radeon HD 5870 and HD 5850 video cards in single or multi video configurations. It combines a full nickel-plated solid copper cooler which targets all primary heat-producing regions of the HD 5870/5850/5830 (including the voltage regulators). An acrylic lid allows coolant visibility under the logo. Nozzle threading is standard G 1/4 BSP, nozzles not included. Package contains cooling block, thermal paste, mounting hardware, and manual.Note: This product is for ATI reference layouts only. For cards that have been changed from the reference spec, see this page.