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Black 70mm square case fan with 4-pin connector and double ball bearing

SXDOOL

SXDOOL DESC0715B2U 70mm 4-pin double ball case fan

SKU CH-M63Y-PEHNE

A 70mm 4-pin case fan with double ball bearings, 1000 to 5700 RPM speed range and 19 to 30 dBA noise rating

  • Fan Size70mm
  • Power Connector4 Pin
  • ColorBlack
  • LEDNon-LED
  • Precise speed control with 4-pin PWM connector
  • Quiet operation at 19-30 dBA across speed range
  • Long-lasting double ball bearing rated 40,000 hours
  • Wide 1000-5700 RPM range for flexible cooling
  • Compact 70mm frame with 21cm cable for easy routing

70 mm 4-pin PWM case fan

The SXDOOL DESC0715B2U is a 70 mm square frame fan with a 20 mm thickness and a four-pin PWM connector for motherboard control. It draws 0.7 A at 12 V and uses a double ball bearing rated for 40,000 hours of service. The blade assembly measures 7015 while the frame extends to 7020, fitting standard 70 mm mounting holes.

Sustained load behaviour

Speed ranges from 1,000 to 5,700 RPM with a ±10 % tolerance, allowing the fan to ramp up under continuous thermal load rather than only in short bursts. Noise output spans 19 to 30 dBA ±3 dBA across that range, so acoustic levels rise predictably as duty cycle increases. The double ball bearing maintains consistent rotation stability during prolonged operation at higher speeds.

4-pin PWM interface limits

The four-pin connector provides standard PWM control and tachometer feedback through the motherboard header, with a 21 cm cable length for routing. Voltage is fixed at 12 V and current at 0.7 A, so the header must supply at least that current without voltage drop. No additional control protocols or voltage ranges are supported beyond the basic PWM specification.

Highlights

  • Precise speed control with 4-pin PWM connector
  • Quiet operation at 19-30 dBA across speed range
  • Long-lasting double ball bearing rated 40,000 hours
  • Wide 1000-5700 RPM range for flexible cooling
  • Compact 70mm frame with 21cm cable for easy routing

Specifications

Fan Size70mm
Power Connector4 Pin
ColorBlack
LEDNon-LED

Questions about this item

How loud is the DESC0715B2U at its maximum 5700 RPM?

The fan reaches 30 dBA ±3 dBA at top speed, dropping to 19 dBA at 1000 RPM.

My motherboard only has a 3-pin header — can I still run this 4-pin fan?

Yes, the 4-pin connector fits a 3-pin header; the fan will run at full 12 V speed without PWM control.

Will the 7020 frame height clear my low-profile CPU cooler that sits close to the case wall?

The frame is 20 mm thick, so measure the gap between cooler and side panel before installing.

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