Genuine Dell JN738 Central Processing Unit (CPU) Heatsink With Shroud, For Optiplex 210L, 320, 330, 360, 745, 755, 760, 780, 790 Tower Systems, Compatible Dell Part Numbers: FW209, RC651, UD158 Part Number: JN738 Type: CPU Fan and Shroud Material: Metal-Plastic Socket Compatibility: LGA 775/Socket T Compatible Model: Dell Optiplex 210L Dell Optiplex 330 Dell Optiplex 360 Dell Optiplex 755 Dell Optiplex 760