These fans come in 120 mm and 140 mm versions, each with a ” high speed ” version that runs faster… But there’s a twist. In fact, the high-speed models feature two extra blades, up from seven to nine!
Concretely, in terms of features, we have
– 140 mm :
Speed: up to 1200 rpm
air flow: 57.4 CFM
Static pressure: 0.96 mmH2O
140 mm high speed:
Speed: up to 1800 rpm
air flow: 72.2 CFM
Static pressure: 2.44 mmH2O
– 120 mm :
Speed: up to 1600 rpm
air flow: 49.9 CFM
Static pressure: 1.45 mmH2O
– 120 mm hight speed :
Speed: up to 2100 rpm
air flow: 59.6 CFM
Static pressure: 2.41 mmH2O
