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Small black square CPU cooling fan with four-pin connector

SXDOOL

SXDOOL KSB0705HB-A 5V 4-pin CPU fan gadget

SKU CH-P342-MXC98 MPN KSB0705HB-A

A 5 V, four-pin CPU cooling fan compatible with Dell OptiPlex 3020, 3040, 3046m, 3050, 7040 and 9020 desktops

  • Compatible with Dell OptiPlex 3020, 3040, 3046m, 3050, 7040, 9020
  • 5V 4-pin connector enables precise PWM speed control
  • Original manufacturer fan replacements ensure reliable fit
  • Multiple OEM part numbers covered in one listing
  • Randomly selected from equivalent models for immediate dispatch

Replacement CPU fan for Dell OptiPlex

This 5 V four-pin cooling fan replaces the original processor fan in Dell OptiPlex 3020, 3040, 3046m, 3050, 7040 and 9020 desktops as well as the D10U model. It matches the OEM part numbers KSB0705HB-A, BAZC0715R5U, PVB070E05N-P02 and EF70150SX-C020-S9A. The unit ships new and is supplied at random from the listed manufacturers.

Who this suits and who should look elsewhere

The fan suits technicians and owners repairing or maintaining the exact Dell OptiPlex models listed above. It is not for buyers who need a cooler for a different desktop chassis, a laptop or a custom-build motherboard. It also does not suit anyone who requires a specific manufacturer variant rather than a random equivalent.

Check your current fan before ordering

Verify that the existing cooler carries one of the part numbers shown in the listing and that its connector is a four-pin 5 V header. Confirm the physical dimensions and mounting holes match the original unit in your OptiPlex. If your system uses a different voltage, pin count or form factor, this replacement will not fit.

How it compares

Measured against everything we stock in Tech Gadgets & Accessories, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 83% of the 5,998 comparable items (median $24.99).

Specifications

No published specifications for this item yet.

Questions about this item

Which Dell OptiPlex models does the 4-pin 5V KSB0705HB-A fan replace?

The fan is listed for OptiPlex 3020 3040 3046m 3050 7040 9020 and D10U systems.

Can I keep the original heatsink and only swap the fan assembly?

Yes, the unit is a direct drop-in replacement for the original 4-wire fan on those OptiPlex models.

How do I confirm the new fan is running correctly after installation?

The 4-pin connector lets the motherboard report RPM in BIOS or monitoring software so you can verify speed.

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