10c4:80a9 — CP210x to UART Bridge Controller
Silicon Labs
- Vendor ID
- 10c4
- Product ID
- 80a9
- Combined
- 10c4:80a9
- Decimal
- 4292:32937
What is this device?
This is the USB identifier for a CP210x to UART Bridge Controller manufactured by Silicon Labs. The vendor ID 10c4 is registered to Silicon Labs with the USB Implementers Forum, and 80a9 is the product ID that Silicon Labs assigned to this particular model. When you run lsusb on Linux, this device appears as 10c4:80a9 Silicon Labs CP210x to UART Bridge Controller.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 10c4:80a9 Silicon Labs CP210x to UART Bridge Controller
You can filter directly with lsusb -d 10c4:80a9, or get the full descriptor dump with lsusb -v -d 10c4:80a9. Kernel messages from dmesg show the same pair as idVendor=10c4, idProduct=80a9.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_10C4&PID_80A9 USB\VID_10C4&PID_80A9&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_10C4&PID_80A9"
macOS
$ system_profiler SPUSBDataType
CP210x to UART Bridge Controller:
Product ID: 0x80a9
Vendor ID: 0x10c4 (Silicon Labs)Driver help
Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page. Silicon Labs official support →
Raw usb.ids entry
The exact lines this page is generated from, in the upstream source file:
10c4 Silicon Labs 80a9 CP210x to UART Bridge Controller