EK-Supremacy EVO is a universal CPU water block is suited for the new AM4 socket, also fits all legacy AMD socket (AM3+, AM3, AM2, AM2+, FM2, FM2+, 939, 754) motherboards and comes with a pre-assembled error-preventing mounting mechanism that is installed onto the stock AMD backplate. The result is a perfect installation which results in optimal performance every time. EK-Supremacy EVO is truly the only product for performance seeking enthusiasts. The key features are:unmatched thermal performance - more than 2.2°C better performance on most popular AMD processorsvery high-flow design - low hydraulic restriction allows this product to be used in setups using weaker water pumpsmodular design - using various inserts and jets the performance can be further fine-tuned to unleash maximum performance by ensuring the optimal contact with the CPU integrated heat spreader (IHS)The EK-Supremacy EVO uses the same cooling engine as it's predecessor. The cooling liquid accelerates through jet plate's nozzle and turbulently continues its path through numerous very thin channels, which provide an extreme heat dissipating surface area. Specifically designed and carefully machined copper base (sometimes referred to as ‘cold plate’) is made from purest copper available on the market and is further polished to absolute mirror finish. This alone greatly improves the cooling performance of EK-Supremacy EVO.CPU socket compatibility:AMD Socket AM4AMD Sockets: 939, 754, 940AMD Sockets: F, C32AMD Sockets: AM2, AM2+, AM3, AM3+, FM1, FM2, FM2+Enclosed: EK-Supremacy EVO AMD series water blockEK-Supremacy EVO mounting mechanismTIM / thermal grease: Thermal Grizzly Hydronaut (EKWB 1.0g) PLEASE NOTE: A backplate is not included! The water block is mounted onto the pre-existing stock AMD backplate.