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Small rectangular laptop cooling fan with black plastic housing and four-pin connector

SXDOOL

SXDOOL KSB0505HB cooling fan accessory DC5V 0.40A 4-pin

SKU CH-18P7-2F4ZQ MPN KSB0505HB

Replacement CPU cooling fan for Toshiba Satellite C55-A, C55D-A, S855, S855D, U850 and U855 laptops, 5 V 0.40 A 4-pin

  • Fits Toshiba Satellite C55-A, C55D-A, S855, S855D, U850, U855 models
  • Matches part numbers V000270070 and V000270990 for exact replacement
  • Fan model KSB0505HB ensures correct form factor and connector alignment
  • DC 5 V, 0.40 A rating matches original power specifications
  • 4-wire 4-pin connector supports PWM speed control and monitoring

Compatible Toshiba Satellite Models

This replacement cooling fan fits Toshiba Satellite C55-A, C55D-A, S855, S855D, U850 and U855 laptops. It matches part numbers V000270070 and V000270990 for direct installation. Buyers who need a fan for a different Satellite series or another brand cannot use this part. Verify the exact model and physical shape before ordering.

Electrical Specifications and Headroom

The fan runs on DC5V and draws 0.40A through a 4-wire 4-pin connector. This power profile suits the thermal design of the listed Satellite chassis. Systems that require a different voltage, current rating or pin layout will not operate correctly with this unit. The KSB0505HB model number confirms the exact electrical interface.

Thermals, Noise and Power Draw

As a direct OEM-specification replacement, the fan restores the original cooling performance and acoustic profile for the supported notebooks. The 4-pin connection enables speed control by the system firmware under normal workloads. No additional power overhead is introduced beyond the rated 0.40A draw. Install only in the compatible models to maintain intended thermal behaviour.

Highlights

  • Fits Toshiba Satellite C55-A, C55D-A, S855, S855D, U850, U855 models
  • Matches part numbers V000270070 and V000270990 for exact replacement
  • Fan model KSB0505HB ensures correct form factor and connector alignment
  • DC 5 V, 0.40 A rating matches original power specifications
  • 4-wire 4-pin connector supports PWM speed control and monitoring

Specifications

No published specifications for this item yet.

Questions about this item

Will the 4-pin connector on this KSB0505HB fan match the motherboard header on my Toshiba Satellite C55-A?

The fan uses a 4-wire 4-pin connector designed for the Satellite C55-A, C55D-A, S855, S855D, U850 and U855 models; verify the header layout against your board before fitting.

How can I confirm the KSB0505HB is running correctly after installation?

Power on the laptop and listen for the fan spinning; the system should report a steady RPM in BIOS or monitoring software and the exhaust airflow should feel consistent.

Does the KSB0505HB package include mounting screws or thermal paste, or must I buy them separately?

The accessory is supplied as the fan unit only; any screws, thermal compound or tools needed for the swap are not included and must be sourced separately.

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