Don't know if it helps... or if this is right... but a hit on google search produced this...
https://www.ewiz.com/detail.php?name=CA-A1178
Specification
Mfr Part Number: A1178
Application: Application For GeForce 2 Series, GeForce 3 Series, GeForce 4 MX Series Video Card & Chipset
Air Pressure: 4.1mm H2O
Fan Dimension: 50x50x15 m
Max. Air Flow: 12.4CFM
Rated Voltage: 12V
Noise: 26.4dBa
Started Voltage: 7V
Bearing Type: Ball Bearing
Rated Current: 0.16A(max.)
Life Expectation: 50,000 Hours
Power Input: 1.92W
Connector: 3 Pin
FAN Speed: 5500¡À10% R.P.M
Base Material: Copper Base With Nickel Plating