Sunon 40561BX 40mm 12V Server Dual Fan 8-wire PWM Speed Control & Monitor

Genuine Sunon Heavy Duty DC Brushless Dual Stacked Fan with Speed Monitor (Frequency Generator) and PWM Speed Control.
High reliability. Powerful Airflow. Widely used on computer server cooling systems.

Important: Server fans are noisy when used at their high speed range.

Life Expectancy: 70,000 hours

Size: 40x40x56mm
Voltage: 10.2-13.2VDC, 12V Nominal
Rated Current: 1.9A Max.
Input Power: 22.8W
Speed: 22000RPM (estimate)
Bearing: Precision Ball Bearing
Locked Rotor Protection: Auto Restart
Safety Approvals: UL, CUL,TUV

Wire Termination: Wafer 8 pins 1.5mm pitch

Pinout:

Main Motor:
Black: (-)-0V
Red: (+12V) - 12V
Yellow: Freq Out – Frequency Output Pulse (NPN Open Collector Output, 12V typ.)
Blue: PWM Input, 5V logic, 25kHz typ. 50kHz Max

Secondary Motor:
Gray: (-)-0V
Orange: (+12V) - 12V
White: Freq Out2
Green: PWM Input2

Note: This item is an unused (brand new) surplus.