Fan model: DS08025R12U Appearance size: 80 × 80 × 25mm (8025) Fan speed: 4900 ± RPM (PWM speed regulation) Service life: 10.0000 hours (at 25 ° C, 45 to 85% relative humidity) Speed measurement: support Additional functions: support speed measurement function, speed regulation function (PWM intelligent speed regulation) Current 0.7A high air volume fan Rated voltage: 12V Origin: Taiwan Interface: dell4 wire 5 holes (pictured)