04e6:200d STR391 Reader

SCM Microsystems, Inc.

Vendor ID
04e6
Product ID
200d
Combined
04e6:200d
Decimal
1254:8205

What is this device?

This is the USB identifier for a STR391 Reader manufactured by SCM Microsystems, Inc.. The vendor ID 04e6 is registered to SCM Microsystems, Inc. with the USB Implementers Forum, and 200d is the product ID that SCM Microsystems, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 04e6:200d SCM Microsystems, Inc. STR391 Reader.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 04e6:200d SCM Microsystems, Inc. STR391 Reader

You can filter directly with lsusb -d 04e6:200d, or get the full descriptor dump with lsusb -v -d 04e6:200d. Kernel messages from dmesg show the same pair as idVendor=04e6, idProduct=200d.

Windows

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

USB\VID_04E6&PID_200D
USB\VID_04E6&PID_200D&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_04E6&PID_200D"

macOS

$ system_profiler SPUSBDataType
    STR391 Reader:
      Product ID: 0x200d
      Vendor ID: 0x04e6  (SCM Microsystems, Inc.)

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:

04e6  SCM Microsystems, Inc.
	200d  STR391 Reader

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