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  • Ships from China.
    Sold by ThermalNest

    Shipped by ThermalNest

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    DB04028B12U 40x40x28mm 4028 Dual Ball Bearing Cooling Fan, DC 12V 0.66A 4Wire 4Pin PWM 40mm Replacement Fan for Server and Power Supply HighAirflow Heat Dissipation

    • Dual ball bearing minimizes mechanical friction, supports stable highspeed rotation for longduration server continuous workloads
    • 40x40x28mm compact 4028 form factor with 4wire 4pin PWM connector, enables dynamic speed adjustment and signal feedback
    • DC 12V 0.66A highcurrent rating delivers strong airflow to handle highheatload serverpowersupply operating conditions
    • Reinforced fanblade structure optimizes air output, efficiently discharges internal hot air to prevent hardware thermal overheating
    • Directfit DB04028B12U replacement fan, suitable for server, power supply and industrial highdemand cooling projects
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    DB04028B12U is a highperformance 4028 axial cooling fan sized 40x40x28 mm, engineered for server and powersupply intensive thermal management. Equipped with durable dual ball bearing, this 40 mm fan maintains reliable rotation under nonstop heavyduty operation. Running at DC 12V 0.66A and fitted with 4wire 4pin PWM connector, it supports speed signal output and temperaturedriven speed regulation. Optimized fanblade design generates ample airflow to dissipate heat inside server enclosures and powersupply units. This unit serves as dropin replacement for original DB04028B12U fan. Please verify model number, dimension, voltage and pin definition before purchase to ensure proper compatibility.


    Specifications
    1. Model: DB04028B12U
    2. Fan Type: Axial Server Cooling Fan
    3. Dimension: 40 x 40 x 28 mm
    4. Specification Code: 4028 / 40mm / 4cm
    5. Rated Voltage: DC 12V
    6. Rated Current: 0.66A
    7. Bearing Type: Dual Ball Bearing
    8. Connector: 4Wire 4Pin PWM
    9. Application: Server, Power Supply, HighAirflow Industrial Cooling Projects


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