0461:4d20 — HP Optical Mouse
Primax Electronics, Ltd
- Vendor ID
- 0461
- Product ID
- 4d20
- Combined
- 0461:4d20
- Decimal
- 1121:19744
What is this device?
This is the USB identifier for a HP Optical Mouse manufactured by Primax Electronics, Ltd. The vendor ID 0461 is registered to Primax Electronics, Ltd with the USB Implementers Forum, and 4d20 is the product ID that Primax Electronics, Ltd assigned to this particular model. When you run lsusb on Linux, this device appears as 0461:4d20 Primax Electronics, Ltd HP Optical Mouse.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 0461:4d20 Primax Electronics, Ltd HP Optical Mouse
You can filter directly with lsusb -d 0461:4d20, or get the full descriptor dump with lsusb -v -d 0461:4d20. Kernel messages from dmesg show the same pair as idVendor=0461, idProduct=4d20.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_0461&PID_4D20 USB\VID_0461&PID_4D20&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0461&PID_4D20"
macOS
$ system_profiler SPUSBDataType
HP Optical Mouse:
Product ID: 0x4d20
Vendor ID: 0x0461 (Primax Electronics, Ltd)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:
0461 Primax Electronics, Ltd 4d20 HP Optical Mouse