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Bluegears - b-Blaster 140x38 2 ball PWM Version 1200 to 5200RPM with 308 CFM, UL, CE, FCC, RoHS, Reach Certified - Black

SKU: 12349421
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About this product

Bluegears b-Blaster 140 x 38 mm Black 2 ball bearing high-speed high-performance fan. Extreme Speed range from 1200 to 5200 RPM with Excellent Airflow of up to 308 CFM. 38mm thickness Frame design for large motor to generate ultimate speed and airflow. Mini 4 pin 4 wires connector with fan speed signal output. Include 4 mounting screws. Customer Service: Support@bgears.com or call 702-988-6808.

Features
  • Fan Speed and Airflow

    1200 to 5200 RPM with 308 CFM

  • Japanese Ball Bearing

    2 balls bearing

  • Fan Connector

    4 pin Mini PWM connector

  • Certifications

    UL, FCC, CE, RoHS, REACH, WEEE

Specifications
  • Airflow Volume
    308 cubic feet per minute
    Cooling System
    Air
    Fan Size
    140 millimeters
    Fan Speed
    5200 revolutions per minute
    Noise Level
    60.7 decibels adjusted
    Number of Fans Included
    1
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Reviews

Rating 5 out of 5 stars with 1 review

5 star rating. 1 review
100% would recommend to a friend

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Hardware and Reviewer Considerations For hardware

    Using the ASUS ROG Crosshair VIII Dark Hero with high-power fans requires careful power management and specific software configurations to ensure stability. Enthusiast-grade fans pulling 24W to 33W exceed the typical 12W (1A) limit of standard motherboard headers, making external power and specific BIOS settings essential. Power Management and Safety High-wattage fans must be powered directly from the Power Supply Unit (PSU) rather than the motherboard headers to avoid damaging the board's circuitry. SATA Power Requirement: For fans rated at 24W or 33W, you should use only one dedicated SATA to fan power adapter or a powered fan hub. Connector Safety: A single SATA power connector is typically rated for approximately 54W on the 12V rail. For a 33W fan, it is critical to use only one fan per PSU SATA cable to prevent overheating the connector or the thin-gauge wires often found on daisy-chained SATA leads. High-Amp Header: While the ASUS ROG Crosshair VIII Dark Hero features a "High Amp" header, it is generally intended for water pumps and may still be limited compared to direct PSU power for 30W+ industrial-grade fans. Fan Control Settings To maintain the 25% manual speed you prefer, you can utilize both the UEFI BIOS and desktop software. BIOS Manual Mode: Access the Q-Fan Control section in the BIOS to set a manual duty cycle. Setting this to 25% ensures the fan remains at a constant low speed regardless of OS-level software status. ASUS Fan Xpert 4: This tool, found within ASUS Armoury Crate or AI Suite 3, allows for desktop-level adjustments. Auto-Tuning: Before setting manual curves, run the Fan Tuning wizard. This detects the fan's minimum and maximum RPM, allowing Fan Xpert 4 to accurately apply your 25% speed setting. Control Mode: Ensure the header is set to PWM mode in the BIOS if the fan uses a 4-pin connector, as high-power enthusiast fans often require a constant 12V signal with PWM for speed regulation. Hardware and Reviewer Considerations For hardware reviewers using top-tier components like the ASUS ROG Crosshair VIII Dark Hero:

    This review is from Bluegears - b-Blaster 140x38 2 ball PWM Version 1200 to 5200RPM with 308 CFM, UL, CE, FCC, RoHS, Reach Certified - Black

    Posted by HARM

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Bluegears - b-Blaster 140x38 2 ball PWM Version 1200 to 5200RPM with 308 CFM, UL, CE, FCC, RoHS, Reach Certified - Black
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Bluegears b-Blaster 140 x 38 mm Black 2 ball bearing high-speed high-performance fan. Extreme Speed range from 1200 to 5200 RPM with Excellent Airflow of up to 308 CFM. 38mm thickness Frame design for large motor to generate ultimate speed and airflow. Mini 4 pin 4 wires connector with fan speed signal output. Include 4 mounting screws. Customer Service: Support@bgears.com or call 702-988-6808.

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Pros for Bluegears - b-Blaster 140x38 2 ball PWM Version 1200 to 5200RPM with 308 CFM, UL, CE, FCC, RoHS, Reach Certified - Black
There were no pros for this productCooling Performance, Installation Ease, Noise Level, Build Quality, RGB LightingCooling Performance, Installation Ease, Noise Level, Build Quality, AppearanceNoise Level, RGB Lighting, Installation Ease, Overall Performance, Fan Performance
Cons for Bluegears - b-Blaster 140x38 2 ball PWM Version 1200 to 5200RPM with 308 CFM, UL, CE, FCC, RoHS, Reach Certified - Black
There were no cons for this productCompatibilityCable LengthCable Management

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