Zalman Ultimate Liquid CPU Cooler for Intel LGA 2011/1155/1156/1366 and AMD Socket FM2/FM1/AM3+/AM3/AM2+/AM2 LQ-315 Materials: Pure Copper, Aluminum Built-in Pump Within Water Block Connector: 4-Pin Speed: 900 - 2.000 RPM +/- 10% Minimized Noise, Maximized Performance