This is a 120mm replacement fan for your Zalman CPU cooler. Use this fan for the CNPS 7700 series cooler to replace an old or burned out fan instead of having to replace the entire cooler. This is just the fan itself, no housing around it.

Specifications:
Bearing Type: 2-Ball
Size: 120 x 120mm
Max Voltage: 12V
Max Current: 0.35A
Max Airflow: 72.19 CFM @ 12V
Max Speed: 2,000 RPM
Max Noise Level: 32 dB/A