Dell U8679 Computer Case Cooling Fan and Bracket 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: U8679 U1295 JT782 KR024 3NH6D WW138 9G0612P1M031 PMD1206PMB3-A PSD1206PMV3-A 12V - .35A, 60mm x 60mm x 38mm 4 Pin Connector, Compatible with Dell Optiplex GX620, 745, 755 and SX280 Ultra Small Form Factor (USFF) Systems San Ace 60 - Sanyo Denki Fan Part Number : 9G0612P1M031 Sunon Fan Part Number : PMD1206PMB3-A, PSD1206PMV3-A Dell Part Numbers : U8679, U1295, JT782, KR024, WW138