4-Pack 40mm USB Brushless Cooling Fans, 5V, 4200 RPM for Small Appliances

• ❃❃ Fan size: 40x40x10mm(L*W*H); Rated Voltage: 5V DC, Current: 0.21A.
• ❃❃ Airflow: 3CFM, Speed: 4200±5%PRM, Noise: 22 DBA.
• ❃❃ Bearing Type: Oil Bearing.
• ❃❃ Lead Wire: USB; Length: Approx.1m / 39.37 in.
• ❃❃ Package Included: 4 * DC brushless fans.(Notice: 'DO NOT GET WET' or 'Put it in a humid environment'; Or it will stop working. Any questions, you can us and we will help you.)

Used in humidifier aromatherapy and other small appliances series; small heat radiating communication equipment; military equipment; intelligent industrial control equipment plate cooling heat, high precision equipment cooling; pc cpu server cooling dissipation etc.

Specification
NAME: 4 x DC Brushless Oil Bearing Cooling Fan
Rated Voltage : DC5V
Consuming Current : 0.21A
Consuming Power: About 1.05W
Speed: 4200±5% PRM
Iife Expectance: 28000 hours at 40 degree
Acoustic Noise: 22 DBA
Air Flow: 3CFM

Acoustical Noise Testing Condition: Fan is hanged in anechoic chamber, noise is measured at rated voltage in anechoic chamber with microphone at a distance of 1 meter formthe air intake.
USB plug can power the fan through USB ports found behind popular AV electronics and game consoles.

Notice!!!
Please check the fan plug, maybe the plug was wired opposite of the fan it was replacing, that is reverse polarity.

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• We ship within Three business days of payment, usually sooner.
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• We only ship to the lower 48 states, no APO/FPO addresses or PO Boxes allowed.
• Local pickups and combined shipping options are not provided at this time.

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