DF127720BM 77mm Low-Profile 4-Pin PWM CPU Cooling Fan Dynatron /Top Motor
he Dynatron / Top Motor DF127720BM is a high-performance, low-profile DC cooling fan engineered specifically for tight spatial layouts in server chassis, active CPU coolers, and compact industrial computing systems. Built with an optimized 77mm single-flange square frame design and a 20mm thickness profile, it offers a space-saving thermal management choice that easily drops into tightly packed computer enclosures.
Driven by a highly efficient 12V DC motor, the fan features an advanced 4-pin PWM (Pulse Width Modulation) connection that automatically ramps the speed between 1000 RPM and 4500 RPM based on real-time hardware temperatures.Equipped with a premium dual ball bearing system, it provides exceptional continuous-duty lifespan (up to 70,000 hours), stable vertical or horizontal mounting, and a robust balance of 45.5 CFM airflow with high static pressure capabilities.
Feature | Specification |
|---|---|
Model Number | DF127720BM (Also listed as DF127720BM-PWM) |
Brand / Manufacturer | Dynatron Corporation / Top Motor |
Fan Type | DC Axial CPU Cooling Fan / Low-Profile Server Fan |
Dimensions | 77 mm x 77 mm x 20 mm (Screw holes spaced 63mm center-to-center) |
Frame Style | Single Flange Design |
Nominal Voltage | 12V DC |
Operating Current | 0.07A to 0.50A (Max Peak: 2.0A) |
Power Consumption | 6.0 Watts |
Fan Speed Range | 1000 RPM to 4500 RPM (±10%) |
Maximum Airflow | 45.558 CFM |
Maximum Static Pressure | 3.746 mm-H2O |
Acoustical Noise Level | 13.0 dBA (Low) to 45.8 dBA (Max Speed) |
Bearing Type | High-Precision Dual Ball Bearings |
Electrical Connection | 4-Pin PWM Connector (Approx. 8-inch lead wire tail) |
Frame Material | Glass-Fiber Reinforced PBT Plastic (UL 94V-0 Black) |
Impeller Material | Glass-Fiber Reinforced PBT Plastic (UL 94V-0 Black) |
Operating Temperature | -10 °C to +65 °C (65% RH) |
Storage Temperature | -30 °C to +70 °C (65% RH) |
Life Expectancy | 70,000 Hours continuous operation at 40°C ambient |
Environmental Safety | RoHS Compliant |
Ssaoco Dammam
- Started from: Jul 10, 2025
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