Reduced to clear! (normally $79) The EK Thermosphere is a high performance universal GPU water block built off the EK-Supremacy cooling engine designed specifically for use with EK-FC Terminal interconnects in multi GPU systems. It supports the majority of modern NVIDIA and AMD high-end graphics cards via exchangeable mounting plates. This universal water block comes factory pre-fitted with the G80 mounting plate which is designed to fit modern NVIDIA GeForce GTX graphics cards only.