0e21:0681 iAUDIO E2

Cowon Systems, Inc.

Vendor ID
0e21
Product ID
0681
Combined
0e21:0681
Decimal
3617:1665

What is this device?

This is the USB identifier for a iAUDIO E2 manufactured by Cowon Systems, Inc.. The vendor ID 0e21 is registered to Cowon Systems, Inc. with the USB Implementers Forum, and 0681 is the product ID that Cowon Systems, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 0e21:0681 Cowon Systems, Inc. iAUDIO E2.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 0e21:0681 Cowon Systems, Inc. iAUDIO E2

You can filter directly with lsusb -d 0e21:0681, or get the full descriptor dump with lsusb -v -d 0e21:0681. Kernel messages from dmesg show the same pair as idVendor=0e21, idProduct=0681.

Windows

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

USB\VID_0E21&PID_0681
USB\VID_0E21&PID_0681&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0E21&PID_0681"

macOS

$ system_profiler SPUSBDataType
    iAUDIO E2:
      Product ID: 0x0681
      Vendor ID: 0x0e21  (Cowon Systems, 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:

0e21  Cowon Systems, Inc.
	0681  iAUDIO E2

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