5 Stars Computer 80mm, 8cm Quad-4 Blue LED Computer Desktop PC Case Clear Cooling Fan, 3 and 4 pin connector with screws, Quiet and Silent Rated Voltage: 10.8~13.2VDC Fan Speed : 1800+/-10% R.P.M Max. Air Flow: 21.71CFM Noise: 20dB (A) 3 Pin & 4 Pin Male and Female Connector & Screws