121e:3403 — Muzio JM250 Audio Player
Jungsoft Co., Ltd
- Vendor ID
- 121e
- Product ID
- 3403
- Combined
- 121e:3403
- Decimal
- 4638:13315
What is this device?
This is the USB identifier for a Muzio JM250 Audio Player manufactured by Jungsoft Co., Ltd. The vendor ID 121e is registered to Jungsoft Co., Ltd with the USB Implementers Forum, and 3403 is the product ID that Jungsoft Co., Ltd assigned to this particular model. When you run lsusb on Linux, this device appears as 121e:3403 Jungsoft Co., Ltd Muzio JM250 Audio Player.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 121e:3403 Jungsoft Co., Ltd Muzio JM250 Audio Player
You can filter directly with lsusb -d 121e:3403, or get the full descriptor dump with lsusb -v -d 121e:3403. Kernel messages from dmesg show the same pair as idVendor=121e, idProduct=3403.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_121E&PID_3403 USB\VID_121E&PID_3403&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_121E&PID_3403"
macOS
$ system_profiler SPUSBDataType
Muzio JM250 Audio Player:
Product ID: 0x3403
Vendor ID: 0x121e (Jungsoft Co., 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:
121e Jungsoft Co., Ltd 3403 Muzio JM250 Audio Player