H46G Cooling Fan/Heatsink CPU Support Intel Xeon Quad-Core X5460/ X5482/ E5472/ E5450/ X5450/ X5472/ E5440/ E5462/ E5430/ E5420/ E5410/ E5405 Dual-Core E5205/ X5260/ X5272 Solution 2U&Up Material Copper Base & Aluminum Fins with Heatpipes embedded Fan Dimension 77 x 77 x 20 mm Bearing 2 Ball Bearing