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Small square 40mm cooling fan with three wires and black frame

TSUJ

TSUJ Kepler-C72J-OYS-0286 40mm 5V 3-Wire Cooling Fan 2 in 1 accessory

SKU CH-1BCS-8VMA7

A 40 mm 5 V three-wire fan spinning at 4000 RPM for AFB0405LA cooling

  • Key featuresFor AFB0405LA 5 V 0.1A 0.5 W 4,000 RPM 40 × 40 × 10MM 3-Wire
  • Cools efficiently with 4000 RPM airflow
  • Low 0.5 W draw keeps power use minimal
  • Compact 40 x 40 x 10 mm size fits tight spaces
  • 3-wire design enables speed monitoring and control

TSUJ Kepler-C72J-OYS-0286 40mm Cooling Fan

This TSUJ accessory is a 40mm cooling fan designed as a direct match for the AFB0405LA specification. It operates at 5V with a 0.1A current draw and 0.5W power rating. The 3-wire connection supports speed monitoring at 4000RPM within a 40x40x10mm frame. It suits repair or upgrade work on compatible 2-in-1 laptop systems.

Suits technicians replacing an AFB0405LA unit

This fan fits builds that require the exact 5V, 0.1A, 4000RPM profile and 3-wire interface in the 40x40x10mm form factor. It is not for systems needing a different voltage, a larger frame size, a higher rotational speed, or a 4-wire PWM connector. Buyers should verify the original part number before ordering.

How it compares

Measured against everything we stock in 2-in-1 Device Accessories, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 96% of the 7,473 comparable items (median $56.99).

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Specifications

Product
Brand nameTSUJ
Part numberKepler-C72J-OYS-0286

Questions about this item

What are the mounting dimensions of the 40×40×10 mm fan?

The fan measures 40 mm by 40 mm with a 10 mm thickness, so it fits a standard 40 mm square mounting pattern.

Which wire connects to the motherboard header for speed control?

The three-wire cable uses the third wire for the tachometer signal; plug it into a 3-pin or 4-pin PWM header so the board can read the 4000 RPM speed.

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