09d8:0420 — TWN4 CDC
ELATEC GmbH
- Vendor ID
- 09d8
- Product ID
- 0420
- Combined
- 09d8:0420
- Decimal
- 2520:1056
What is this device?
This is the USB identifier for a TWN4 CDC manufactured by ELATEC GmbH. The vendor ID 09d8 is registered to ELATEC GmbH with the USB Implementers Forum, and 0420 is the product ID that ELATEC GmbH assigned to this particular model. When you run lsusb on Linux, this device appears as 09d8:0420 ELATEC GmbH TWN4 CDC.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 09d8:0420 ELATEC GmbH TWN4 CDC
You can filter directly with lsusb -d 09d8:0420, or get the full descriptor dump with lsusb -v -d 09d8:0420. Kernel messages from dmesg show the same pair as idVendor=09d8, idProduct=0420.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_09D8&PID_0420 USB\VID_09D8&PID_0420&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_09D8&PID_0420"
macOS
$ system_profiler SPUSBDataType
TWN4 CDC:
Product ID: 0x0420
Vendor ID: 0x09d8 (ELATEC GmbH)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:
09d8 ELATEC GmbH 0420 TWN4 CDC