San Ace 60 9G0612P1M031 Computer Case Cooling Fan and Shroud Assembly Or Compatible Fan, For The Dell Optiplex GX620, 745, 755, and SX280 Ultra Small Form Factor (USFF) Systems, 12Volts~0.35Amps, 4-Pin Connector, 60mm x 60mm x 38mm, Compatible Dell Part Numbers: U8679, U1295, JT782, KR024, Compatible Sunon Part Number: PMD1206PMB3-A 12 Volts, 0.35Amps, 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 Part Number: 9G0612P1M031 Compatible Sunon Part Number: PMD1206PMB3-A Compatible Dell Part Numbers : U8679, U1295, JT782, KR024