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Square 40mm black frame fan with four-pin connector and mounting screws

LORDWORLD

LORDWORLD 5V PWM Cooling Fan 40×40×20mm 4-Pin for Jetson Nano B01

SKU CH-B48S-XGJSW

5 V PWM fan with 40×40×20 mm frame and reverse-proof 4-pin connector cools Jetson Nano B01

  • Designed for Jetson Nano B01 with dedicated fit
  • Reverse-proof 4-pin connector prevents incorrect installation
  • PWM speed adjustment matches cooling to workload
  • Compact 40×40×20 mm frame fits tight spaces
  • Includes fan and screw pack for immediate mounting

Dedicated 5 V PWM Fan for Jetson Nano B01

This 40 mm square fan is built to match the NVIDIA Jetson Nano Developer Kit and the B01 revision. It runs from the board's 5 V rail and uses a four-pin PWM connector so the system can vary speed with load. The reverse-proof header prevents misalignment during installation. The pack includes the fan and a screw set for immediate mounting.

Direct replacement for the stock cooler

The unit fits the exact mounting pattern of the developer kit, so no adapter bracket or cable hack is required. PWM control lets the board spin the fan only when thermals demand it, cutting acoustic noise during light workloads. Builders who need silent operation at idle or sustained airflow under heavy inference tasks will benefit from the swap.

Mounts on the Jetson Nano heatsink using

The 40×40×20 mm frame sits on the standard standoffs and draws power from the 4-pin fan header on the carrier board. No external supply or separate controller is needed. The reverse-proof connector ensures correct polarity on the first try, freeing the builder to focus on the AI workload instead of wiring.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 91% of the 1,420 comparable items (median $44.99).

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Specifications

Product
Brand nameLORDWORLD

Questions about this item

What are the exact dimensions of the fan and will it fit the Jetson Nano B01 mounting holes?

The fan measures 40mm by 40mm by 20mm and is designed specifically for the Jetson Nano B01 developer kit.

How do I connect the 4-pin PWM connector to the board without damaging the pins?

The 4-pin connector is reverse-proof; align it with the Jetson Nano fan header and press straight down until seated.

Does the package include replacement screws if the originals are lost during installation?

The box contains one 4020 PWM fan and one screw pack for mounting it to the board.

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