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| CPU Socket | 1366 |
| CPU Support | Intel® Xeon™ 5500 Series Nehalem EP Processor Socket LGA 1366 processor W5580, X5570, X5560, X5550, E5540, E5530, E5520, E5506, E5504, E5502, L5520, L5506, L5508, L5518 |
| Solution | 2U&Up |
| Overall Dimension | 90.0 x 90.0 x 64.0 mm |
| Weight | 490 g |
| Material | Copper Base & Aluminum Fins with Heatpipes embedded |
| Fan Dimension | 60 x 60 x 25 mm |
| Speed | At Duty Cycle 20%: 1600 RPM At Duty Cycle 50%: 4000 RPM At Duty Cycle 100%: 8000 RPM |
| Bearing | 2 Ball Bearing |
| Rated Voltage | 12 V |
| Power | At Duty Cycle 20%: 0.6 W At Duty Cycle 50%: 1.8 W At Duty Cycle 100%: 7.2 W |
| Air Flow | At Duty Cycle 20%: 8.75 CFM At Duty Cycle 50%: 21.88 CFM At Duty Cycle 100%: 43.75 CFM |
| Noise Level | At Duty Cycle 20%: 16.85 dBA At Duty Cycle 50%: 35.94 dBA At Duty Cycle 100%: 51.0 dBA |
| Air Pressure | At Duty Cycle 20%: 0.0279 inch-H2O At Duty Cycle 50%: 0.1743 inch-H2O At Duty Cycle 100%: 0.6972 inch-H2O |
| Lead Wire Pin Out | Pin1-Black (-) Pin2-Yellow (+) Pin3-Green (Tachometer/Signal output) Pin4-Blue (PWM) |
| Note | 1. G666 is designed for server motherboard. Mounting Kit option available for Intel® Core™ i7 desktop motherboard. 2. Backplate is not included 3. RoHS Compliance |