1500RPM version is very quiet (23.1dBA) and steady spinning, silent airflow that you may not notice. Dimension of fan: 120mm(L) x 120mm(W) x 25mm(H) / 4.72in(L) x 4.72in(W) x 1in(H); Totally 121x121x57mm / 4.76in x 4.76in x 2.24in. Rated Voltage: DC 5V; Rated Current: 0.2Amp; Rated Speed:1500RPM; Air flow: 56.7CFM; Noise: 23.1dBA Bearing Type: Hydraulic Bearing; Life: working up to 40000h at 25 degrees. Package include: 1 piece router cooler fan Package include:
1pcs router cooler fan
Dimension of fan: 120mm(L) x 120mm(W) x 25mm(H) / 4.72in(L) x 4.72in(W) x 1in(H); Totally 121x121x57mm / 4.76in x 4.76in x 2.24in.
Connector: USB
Rated Voltage: DC 5V
Rated Current: 0.2 Amp
Rated Speed: 1500 RPM
Air flow: 56.7CFM
Noise: 23.1dBA
Bearing Type: Hydraulic Bearing
Life: working up to 40000 hours at 25 degree
Cable Lenght: 55cm
Weight: 170g