If a USB device is not showing up through the Aluminum Type-C to USB 3.0 Adapter (ST-TCUAS, ST-TCUAG, and ST-TCUAM), the usual causes are a connector that is not fully seated, debris in the USB-C port, or a USB-C port on your computer that is charge only and does not carry data. The Aluminum Type-C to USB 3.0 Adapter is plug and play on macOS and Windows with no software to install, and it supports USB 3.0 data speeds up to 5 Gbps. Work through the steps below in order.

Steps to fix detection on the Aluminum Type-C to USB 3.0 Adapter

1. Reconnect the Aluminum Type-C to USB 3.0 Adapter firmly into your computer's USB-C or Thunderbolt port so the plug makes full contact.
2. Check the USB-C port on your computer for dust or debris and clear it out.
3. Confirm the USB-C port you are using supports data. Some USB-C ports are charge only and will not pass data through the adapter.
4. Plug a different USB-C accessory into the same port to check whether the port itself is working.
5. Connect your USB-A device directly to the computer to confirm the device works on its own.
6. Try the Aluminum Type-C to USB 3.0 Adapter in a different USB-C port, or on another host device such as a MacBook, iPad, or Windows PC.
7. Restart your computer, then reconnect the adapter directly instead of through a hub.
8. On a Mac, open System Report, go to USB, and confirm the adapter appears in the USB device tree. On Windows, open Device Manager, expand Universal Serial Bus controllers, look for a USB 3.0 Hub or Generic SuperSpeed USB Hub entry, and click Scan for hardware changes if it is missing.
9. Install any pending operating system updates, then reconnect the Aluminum Type-C to USB 3.0 Adapter.