046b:ff20 — Virtual CDROM
American Megatrends, Inc.
- Vendor ID
- 046b
- Product ID
- ff20
- Combined
- 046b:ff20
- Decimal
- 1131:65312
What is this device?
This is the USB identifier for a Virtual CDROM manufactured by American Megatrends, Inc.. The vendor ID 046b is registered to American Megatrends, Inc. with the USB Implementers Forum, and ff20 is the product ID that American Megatrends, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 046b:ff20 American Megatrends, Inc. Virtual CDROM.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 046b:ff20 American Megatrends, Inc. Virtual CDROM
You can filter directly with lsusb -d 046b:ff20, or get the full descriptor dump with lsusb -v -d 046b:ff20. Kernel messages from dmesg show the same pair as idVendor=046b, idProduct=ff20.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_046B&PID_FF20 USB\VID_046B&PID_FF20&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_046B&PID_FF20"
macOS
$ system_profiler SPUSBDataType
Virtual CDROM:
Product ID: 0xff20
Vendor ID: 0x046b (American Megatrends, 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:
046b American Megatrends, Inc. ff20 Virtual CDROM