5M21B10216 - Lenovo Laptop Mechanical Dummy Cap - Genuine

This Mechanical Dummy Cap (5M21B10216) is a genuine Lenovo part, designed for various Lenovo laptops. It's also known as a 'SIM' cap in technical circles. Such a component is crucial for maintaining the integrity of unused ports and protecting them against dust, debris, and possible damage. When your laptop's ports are not in active use, employing a mechanical dummy cap ensures that these openings remain safe from external elements, preserving the internal components' cleanliness and functionality.

If your laptop has exposed ports that you no longer utilize, or you've noticed that dust tends to accumulate in these areas, it might be time to consider using a mechanical dummy cap. A simple yet effective replacement, this part helps in maintaining your device's pristine condition without active intervention.

Before making a purchase, it is advised to check your device's model number to ensure compatibility with the Mechanical Dummy Cap (5M21B10216), confirming it fits your Lenovo laptop accurately.

iFixit is an official Lenovo partner. Our Genuine Lenovo parts are supplied by the official Lenovo supply chain.