12d6:0444 — CPC-USB/ARM7

This is the USB identifier for a CPC-USB/ARM7 manufactured by EMS Dr. Thomas Wuensche. The vendor ID 12d6 is registered to EMS Dr. Thomas Wuensche with the USB Implementers Forum, and 0444 is the product ID that EMS Dr. Thomas Wuensche assigned to this particular model. When you run lsusb on Linux, this device appears as 12d6:0444 EMS Dr. Thomas Wuensche CPC-USB/ARM7.

Linux

$ lsusb
Bus 001 Device 004: ID 12d6:0444 EMS Dr. Thomas Wuensche CPC-USB/ARM7

You can filter directly with lsusb -d 12d6:0444, or get the full descriptor dump with lsusb -v -d 12d6:0444. Kernel messages from dmesg show the same pair as idVendor=12d6, idProduct=0444.

Windows

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

USB\VID_12D6&PID_0444
USB\VID_12D6&PID_0444&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_12D6&PID_0444"

macOS

$ system_profiler SPUSBDataType
    CPC-USB/ARM7:
      Product ID: 0x0444
      Vendor ID: 0x12d6  (EMS Dr. Thomas Wuensche)

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.

The exact lines this page is generated from, in the upstream source file:

12d6  EMS Dr. Thomas Wuensche
	0444  CPC-USB/ARM7

• 12d6:0888 CPC-USB/M16C

See all 2 devices from EMS Dr. Thomas Wuensche →