## Common ground
All options are protective covers designed to fit over USB ports, preventing dust and debris from entering.
## Options at a glance
**3926.90 – Plastic USB port cover**
- **Defining trait:** Made of plastic and intended for general-purpose protection of standard USB ports.
- **Typical examples:** Silicone or hard plastic caps for USB-A, USB-C, or micro-USB ports on computers and chargers.
- **Best fit when:** Protecting any standard USB port on devices like laptops, desktops, or power banks.
**8518.90 – USB cover for headsets**
- **Defining trait:** Specifically designed to protect the USB connector of a headset (e.g., gaming or audio headsets).
- **Typical examples:** Covers that fit over the USB plug used by wired headsets, often with a retention clip or soft material.
- **Best fit when:** The product is intended for use with headsets and may include features like strain relief or cable management.
## Key differences
| Feature | 3926.90 – Plastic USB port cover | 8518.90 – USB cover for headsets |
|-----------------------|-----------------------------------|----------------------------------|
| Primary use | General USB port protection | Headset-specific USB connector |
| Typical device type | Laptops, chargers, power banks | Wired headsets |
| Design focus | Simple plug-and-play fit | Cable strain relief, retention |
## How to choose
- Is the cover meant for a standard USB port on a computer or charger? → 3926.90
- Is it designed specifically for a headset’s USB plug (e.g., with a clip or soft material)? → 8518.90
## Overlaps & pitfalls
A cover may fit both categories if it protects a USB port on a headset. In such cases, the **main function** determines the correct HS Code: prioritize based on whether the product is primarily for general port protection (3926.90) or headset-specific use (8518.90). If unclear, the defining trait is the intended device type