0783:0003 — LTC31 SmartCard Reader
C3PO
- Vendor ID
- 0783
- Product ID
- 0003
- Combined
- 0783:0003
- Decimal
- 1923:3
What is this device?
This is the USB identifier for a LTC31 SmartCard Reader manufactured by C3PO. The vendor ID 0783 is registered to C3PO with the USB Implementers Forum, and 0003 is the product ID that C3PO assigned to this particular model. When you run lsusb on Linux, this device appears as 0783:0003 C3PO LTC31 SmartCard Reader.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 0783:0003 C3PO LTC31 SmartCard Reader
You can filter directly with lsusb -d 0783:0003, or get the full descriptor dump with lsusb -v -d 0783:0003. Kernel messages from dmesg show the same pair as idVendor=0783, idProduct=0003.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_0783&PID_0003 USB\VID_0783&PID_0003&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0783&PID_0003"
macOS
$ system_profiler SPUSBDataType
LTC31 SmartCard Reader:
Product ID: 0x0003
Vendor ID: 0x0783 (C3PO)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.
Raw usb.ids entry
The exact lines this page is generated from, in the upstream source file:
0783 C3PO 0003 LTC31 SmartCard Reader