1234:4321 — Human Interface Device

This is the USB identifier for a Human Interface Device manufactured by Brain Actuated Technologies. The vendor ID 1234 is registered to Brain Actuated Technologies with the USB Implementers Forum, and 4321 is the product ID that Brain Actuated Technologies assigned to this particular model. When you run lsusb on Linux, this device appears as 1234:4321 Brain Actuated Technologies Human Interface Device.

Linux

$ lsusb
Bus 001 Device 004: ID 1234:4321 Brain Actuated Technologies Human Interface Device

You can filter directly with lsusb -d 1234:4321, or get the full descriptor dump with lsusb -v -d 1234:4321. Kernel messages from dmesg show the same pair as idVendor=1234, idProduct=4321.

Windows

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

USB\VID_1234&PID_4321
USB\VID_1234&PID_4321&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_1234&PID_4321"

macOS

$ system_profiler SPUSBDataType
    Human Interface Device:
      Product ID: 0x4321
      Vendor ID: 0x1234  (Brain Actuated Technologies)

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:

1234  Brain Actuated Technologies
	4321  Human Interface Device

• 1234:0000 Neural Impulse Actuator Prototype 1.0 [NIA]
• 1234:ed02 Emotiv EPOC Developer Headset Wireless Dongle

See all 3 devices from Brain Actuated Technologies →