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Supermicro counter-rotating 40 mm square fan 56 mm deep

Supermicro

Supermicro FAN-0141L4 40x40x56 mm 20.5K/17.6K RPM counter-rotating server accessory

SKU CH-9JVV-1159S MPN FAN-0141L4

Counter-rotating 40×56 mm server cooling fan reaching 20.5K and 17.6K RPM for Supermicro SC118G, SC818G and SC118GQ chassis

  • Counter-rotating design improves airflow efficiency
  • 20,500 rpm maximum speed delivers high static pressure
  • 40 mm square frame fits dense 1U server chassis
  • Compatible with Supermicro SC118G, SC818G and SC118GQ chassis
  • 56 mm depth allows installation in tight spaces

Server Cooling Fan

The Supermicro FAN-0141L4 is a 40 mm counter-rotating cooling fan designed for compatible Supermicro chassis. It targets system builders and administrators who need high-speed airflow for dense 1U or 2U server environments. The unit operates at two distinct speeds of 20.5K and 17.6K RPM to meet demanding thermal requirements. This accessory fits specific SC118G, SC818G and SC118GQ chassis models.

Installation Notes

The fan measures 40x40x56 mm with a height of 2.20 inches and width of 1.57 inches, matching the mounting pattern of supported chassis. Installation typically involves sliding the module into the designated fan bay until it locks into the onboard connector. Counter-rotating blades increase static pressure but also raise acoustic output at full speed. Verify the chassis fan header pin-out matches the fan cable before applying power.

Compatibility Check

Confirm your chassis model is listed as SC118G, SC818G or SC118GQ before ordering. The fan depth of 56 mm and 1.57 inch width must align with the available bay clearance in your specific enclosure. Ensure the system fan controller supports the 20500 RPM maximum speed rating for proper monitoring. This accessory is not suitable for chassis outside the stated compatibility list or for general-purpose desktop cases.

How it compares

Measured against everything we stock in Drive Cages & Server Add-Ons, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 91% of the 1,119 comparable items (median $74.99).

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Specifications

Size & build
Shipping weight1.36 kg
Package size203 × 152 × 102 mm

Questions about this item

How can I verify the fan is running at the correct 20.5K RPM after installation?

Check the server management interface or BIOS hardware monitor; it should report a speed close to 20,500 RPM for this counter-rotating unit.

What comes in the box and do I need a separate mounting bracket or cable?

The package contains the single 40x40x56 mm counter-rotating fan assembly; it plugs directly into the chassis fan header, so no extra bracket or cable is required.

Which Supermicro chassis models is the FAN-0141L4 compatible with?

This fan is validated for the SC118G, SC818G and SC118GQ chassis series.

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