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Small black rectangular laptop cooling fan with wire connector

Fans

Fans L850 KSB0505HB case fan

SKU CH-KRXC-NGXP9

Replacement cooling fan for HP DV4-4000 and DV4-4270US laptops

  • Compatible with HP DV4-4270US laptop
  • Matches HP DV4-4000 series models
  • Replaces original part 650460-001
  • Model L850 KSB0505HB identification

HP DV4 replacement fan

This L850 fan with part number KSB0505HB is built for HP DV4-4000 and DV4-4270US notebooks. It matches the original 650460-001 specification for a direct swap. Technicians and owners restoring these specific laptops will find the correct fit.

Single unit capacity

The package contains one fan, so a laptop requiring a pair will need a second purchase. It addresses cooling for the listed DV4 models only and does not suit other HP series or desktop builds. Buyers needing different connectors or form factors must look elsewhere.

Highlights

  • Compatible with HP DV4-4270US laptop
  • Matches HP DV4-4000 series models
  • Replaces original part 650460-001
  • Model L850 KSB0505HB identification

Specifications

No published specifications for this item yet.

Questions about this item

Will the L850 KSB0505HB fit alongside the original cooling assembly in my HP DV4-4000?

The L850 KSB0505HB is listed as a direct replacement for the HP DV4-4000 series, matching part number 650460-001 for that chassis.

How can I confirm the KSB0505HB is spinning correctly after installing it in the DV4-4270US?

Listen for the fan spinning up during boot and check the hardware monitor in BIOS or Windows to verify RPM is being reported for the CPU fan header.

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