09d8:0406 TWN4 MIFARE NFC

ELATEC GmbH

Vendor ID
09d8
Product ID
0406
Combined
09d8:0406
Decimal
2520:1030

What is this device?

This is the USB identifier for a TWN4 MIFARE NFC manufactured by ELATEC GmbH. The vendor ID 09d8 is registered to ELATEC GmbH with the USB Implementers Forum, and 0406 is the product ID that ELATEC GmbH assigned to this particular model. When you run lsusb on Linux, this device appears as 09d8:0406 ELATEC GmbH TWN4 MIFARE NFC.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 09d8:0406 ELATEC GmbH TWN4 MIFARE NFC

You can filter directly with lsusb -d 09d8:0406, or get the full descriptor dump with lsusb -v -d 09d8:0406. Kernel messages from dmesg show the same pair as idVendor=09d8, idProduct=0406.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_09D8&PID_0406
USB\VID_09D8&PID_0406&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_09D8&PID_0406"

macOS

$ system_profiler SPUSBDataType
    TWN4 MIFARE NFC:
      Product ID: 0x0406
      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
	0406  TWN4 MIFARE NFC

More from ELATEC GmbH