Genuine Dell JMC / DATECH 9232-12HBTL-2 92mm x 32mm CPU/Case Fan For the OptiPlex GX60, GX260, Dimension 4300, 4400, 4500, 4550, 8200, and 8300, (Fits 0P020 Shroud) Part Number: 9M060 Genuine Dell 92mm CPU/Case Fan for various Optiplex and Dimension systems This fan uses a 3-Pin Power Connector Dimensions: 5/8" x 3 5/8" x 1 1/4"