5H40H70348 Lenovo Thermal Module Q N21 Heat Sink Mobile N21 Chromebook

The 5H40H70348 Lenovo Thermal Module Q is a heat‑sink component specifically engineered for the Lenovo N21 mobile Chromebook. Designed to integrate seamlessly with the device’s cooling system, this part helps dissipate heat generated by the processor and other internal components, supporting stable performance during extended use. Its form factor matches the original equipment specifications, ensuring a direct replacement without the need for modifications. By maintaining optimal operating temperatures, the thermal module contributes to the longevity of the Chromebook’s hardware and helps prevent thermal throttling. This genuine Lenovo part is intended for service technicians and users seeking a reliable, OEM‑grade cooling solution for the N21 model.