Reduced to clear! (normally $129) The EK-FC RX-480 is a high-performance full-cover water block for the AMD reference design Radeon RX 480 graphics card. This water block directly cools the GPU, GDDR5 RAM, as well as VRM (voltage regulation module) as water flows directly over these critical areas thus allowing the graphics card and it's VRM to remain stable under high overclocks.