Specifications

Feature	Value	Comment
Solution	2U&Up
Overall Dimension	100.0 x 78.0 x 61.0 mm
Weight	410 g
Material	Copper Base & Aluminum Fins with Heatpipes embedded
Fan Dimension	77 x 77 x 20 mm
Speed	At Duty Cycle 0%: 1000 RPM
Speed	At Duty Cycle 20%: 1000 RPM
Speed	At Duty Cycle 100%: 4500 RPM
Bearing	2 Ball Bearing
Rated Voltage	12 V
Power	At Duty Cycle 0%: 0.54 W
Power	At Duty Cycle 100%: 6.0 W
Power	At Duty Cycle 20%: 0.54 W
Air Flow	At Duty Cycle 0%: 8.36 CFM
Air Flow	At Duty Cycle 20%: 8.36 CFM
Air Flow	At Duty Cycle 100%: 45.558 CFM
Noise Level	At Duty Cycle 0%: 20.6 dBA
Noise Level	At Duty Cycle 20%: 20.6 dBA
Noise Level	At Duty Cycle 100%: 45.8 dBA
Air Pressure	At Duty Cycle 0%: 0.009 inch-H2O
Air Pressure	At Duty Cycle 100%: 0.148 inch-H2O
Air Pressure	At Duty Cycle 20%: 0.009 inch-H2O
Lead Wire Pin Out	Pin1-Black (-)
Lead Wire Pin Out	Pin4-Blue (PWM)
Lead Wire Pin Out	Pin3-Green (Techometer/Signal output)
Lead Wire Pin Out	Pin2-Yellow (+)
Note	1. 90degree angle Fin array where perpendicular to cooler mounting axis
Note	2. 3.5" Mounting pitch
Note	3. RoHS Compliance
CPU Socket	C32/F 1207
CPU Support	AMD® Socket C32 Opetron 4100 Series 4184, 4180, 4130 , 4122, 4176HE, 4174HE, 4170HE, 4164EE, 4162EE & Shanghai & Barcelona processors -Third-Generation Opteron 2300 & 8300 series & Second-Generation Opteron
Release Date
First seen	8 October 2009

Dynatron F557