Dell U8679 Computer Case Cooling Fan and Shroud Assembly, For Optiplex GX620, 745, 755, and SX280 Ultra Small Form Factor (USFF) Systems, 12V~.35A, 60mm x 60mm x 38mm, 4-Pin Connector, Compatible Part Numbers: 9G0612P1M031, PMD1206PMB3-A, U1295, JT782, KR024