The Dynatron T191 1U Server PWM CPU Cooler cools high performance dual-core processors that use Socket 775. The low profile blower fan pulls air directly across the aluminum heatsink, provide efficient cooling despite the space limitations. The blower is controlled by the motherboard using a PWM connector, allowing the motherboard better control than ever.

CPU:	Intel® Socket 775 Core 2 Duo E8500, E6850, E8400, E6750, E8190, E8200, E4700, E6550, E6540, E4500, E4400, Pentium® Dual-Core & Celeron® D for 1U Server
Overall Dimensions:	82.6 x 81.0 x 28.5 mm
Weight:	172 g
Material:	Aluminum
Fan Dimensions:	80 x 80 x 15 mm
Speed:	1000 RPM at Duty Cycle 0% 2500 RPM at Duty Cycle 20% 5000 RPM at Duty Cycle 100%
Bearing:	2 x Ball
Rated Voltage:	12 V
Power:	0.36 W at Duty Cycle 0% 0.96 W at Duty Cycle 20% 7.56 W at Duty Cycle 100%
Air Flow:	2.508 CFM at Duty Cycle 0% 7.214 CFM at Duty Cycle 20% 15.0 CFM at Duty Cycle 100%
Noise Level:	20.5 dBA at Duty Cycle 0% 35.6 dBA at Duty Cycle 20% 49.8 dBA at Duty Cycle 100%
Air Pressure:	0.032 inch-H2O at Duty Cycle 0% 0.338 inch-H2O at Duty Cycle 20% 1.424 inch-H2O at Duty Cycle 100%
Lead Wire Pin Out:	Pin-1 Black (-) Pin-2 Yellow (+) Pin-3 Green (Techometer/Signal output) Pin-4 Blue (PWM)