Sunon 40 mm x 10mm 3 pin Fan KD1204PFV2 Model MB40101V2-00U-A99 40x40x10mm Medium Speed: 5800 RPM Airflow: 7.0 CFM / Noise Level: 27 dBA 3pin connector with 12" tail, RPM monitoring lead Bearing: Vapo with Maglev tech