APEVIA AF512S-BK 120mm 4pin & 3pin black silent case fan (5-pk) - best value. Air flow - 57.67 CFM. Noise level - 24.7 decibels
Comes with 4 pin (connected to power supply) & 3 pin (connected to motherboard) connectors
Fan size: 120mm x 120mm x 25mm, solid black case fan without LED light
Low noise level: 24.7 DBA, air power: 12 VDC, fan speed: 1500 ± 10% RPM
Life expectation: 30,000 hours