049f:504a Personal Jukebox PJB100

Compaq Computer Corp.

Vendor ID
049f
Product ID
504a
Combined
049f:504a
Decimal
1183:20554

What is this device?

This is the USB identifier for a Personal Jukebox PJB100 manufactured by Compaq Computer Corp.. The vendor ID 049f is registered to Compaq Computer Corp. with the USB Implementers Forum, and 504a is the product ID that Compaq Computer Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 049f:504a Compaq Computer Corp. Personal Jukebox PJB100.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 049f:504a Compaq Computer Corp. Personal Jukebox PJB100

You can filter directly with lsusb -d 049f:504a, or get the full descriptor dump with lsusb -v -d 049f:504a. Kernel messages from dmesg show the same pair as idVendor=049f, idProduct=504a.

Windows

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

USB\VID_049F&PID_504A
USB\VID_049F&PID_504A&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_049F&PID_504A"

macOS

$ system_profiler SPUSBDataType
    Personal Jukebox PJB100:
      Product ID: 0x504a
      Vendor ID: 0x049f  (Compaq Computer Corp.)

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:

049f  Compaq Computer Corp.
	504a  Personal Jukebox PJB100

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