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Small rectangular cooling fan with four-pin connector and two-tone finish

OEM Industries

OEM Industries EG50050V1-C040-S99 CPU cooler

SKU CH-FEVX-69ESN MPN EG50050V1-C040-S99

5V Maglev cooling fan with 4-pin connector fits Lenovo U310 and UX310 ultrabooks

  • Color2-Tone
  • TypeAccessories
  • Bearing TypeMaglev
  • Power Connector4 Pin
  • LEDNo
  • Maglev bearing reduces friction for longer life
  • 5 V DC operation matches ultrabook power rails
  • 5 W draw keeps thermal load low
  • Four-pin connector enables precise PWM speed control
  • Direct fit for Lenovo U310 U310-ITH UX310 models

Replacement Fan for Lenovo Ultrabooks

The OEM Industries EG50050V1-C040-S99 is a direct-replacement cooling fan built for Lenovo U310, U310-ITH and UX310 ultrabooks. It arrives new and ready to install for owners whose original blower has become noisy or failed. The part matches the OEM form factor so it fits the existing mounting points without modification.

5 V DC Power and Four-Pin Control

The fan runs on a 5 V DC supply drawing 2.5 W and connects through a four-pin, four-wire connector. That interface carries both power and PWM speed control, allowing the system firmware to regulate RPM based on thermal load. Maglev bearing technology reduces friction and wear compared with conventional sleeve or ball bearings.

Upgrade from a Worn or Noisy OEM Blower

This unit replaces the factory-installed cooler when bearing noise, reduced airflow or complete failure makes the laptop throttle or shut down. The jump is worth it when the original fan no longer spins freely or produces audible grinding. It is not for users needing higher airflow than the stock design provides or for models outside the listed U310 and UX310 series.

Highlights

  • Maglev bearing reduces friction for longer life
  • 5 V DC operation matches ultrabook power rails
  • 5 W draw keeps thermal load low
  • Four-pin connector enables precise PWM speed control
  • Direct fit for Lenovo U310 U310-ITH UX310 models

Specifications

ModelEG50050V1-C040-S99
Color2-Tone
TypeAccessories
Bearing TypeMaglev
Power Connector4 Pin
LEDNo

Questions about this item

Which fan model fits my Lenovo U310 or UX310 Ultrabook?

The EG50050V1-C040-S99 is built for the Lenovo U310, U310-ITH and UX310 Ultrabook series, so it matches the original cooling assembly in those machines.

What does the 2.5W power rating mean for daily use?

At 5V and 2.5W the fan draws about 0.5A, keeping the ultrabook’s thermal budget low while still moving enough air for typical workloads.

How does the 4-pin connector affect speed control?

The 4-pin PWM connector lets the motherboard vary fan speed precisely, so the Maglev bearing runs quieter at idle and ramps up only when the CPU needs more cooling.

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