Model; 2B12038B48U Bearing type: high-precision maintenance-free double ball bearing Speed: 5800RPM Noise: 68dB(A) Air volume: 253CFM Service life: 10.0000 hours (25, 4585% relative humidity environment) Current: 1.3A (large air volume fan) Power: 62.4W Rated voltage: 48V 1.30A P005 Lead interface: 4-pin interface/extra function supports speed measurement function, speed control function PWM intelligent speed control function