This product is either discontinued or we cannot get that from suppliers.
Coolermaster R4-S2S-124K-GP, Voltage 12VDC, Input (Watt) 1.8W, Speed (R.P.M.) 1200 R.P.M.±10%, Air Flow (CFM) 44.73CFM, Fan Noise Level (dB-A) 19.1 dB-A, Black, Bearing Sleeve, Connector 3-pin.
Case cooling is becoming more essential these days. The better airflow inside your system, the cooler and more stable system you will get.