This 120mm x 38mm fan, part number AD1212HB-F93GP has 2 ball bearings for long life. The fan includes a 3 pin (2 wire) standard PC motherboard connector
The specifications include;
Voltage, 12VDC
Voltage Range, 6- 13.2VDC
Current, 1.95Amps
Speed, 4300 RPM at rated voltage and zero pressure
Flow (Max), 199.7CFM
Pressure Rise (Max), 0.64inH2O
Noise, 61dBA at rated voltage and zero pressure, measured at 1 meter to side