That depends on what sort of device it is.
There are a few things you can try:
- Click Start, type msinfo32 in the Search box, and press Enter. Expand the "Components" category to look for your device
- Click Start, type Device Manager in the Search box, and press Enter. Here, you'll have to look in the appropriate category.
- You can also try the free utility Speccy: https://www.ccleaner.com/speccy
If none of that helps, please explain what it is that you're trying to identify.