2a39:3fc0 — Babyface Pro

This is the USB identifier for a Babyface Pro manufactured by RME. The vendor ID 2a39 is registered to RME with the USB Implementers Forum, and 3fc0 is the product ID that RME assigned to this particular model. When you run lsusb on Linux, this device appears as 2a39:3fc0 RME Babyface Pro.

Linux

$ lsusb
Bus 001 Device 004: ID 2a39:3fc0 RME Babyface Pro

You can filter directly with lsusb -d 2a39:3fc0, or get the full descriptor dump with lsusb -v -d 2a39:3fc0. Kernel messages from dmesg show the same pair as idVendor=2a39, idProduct=3fc0.

Windows

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

USB\VID_2A39&PID_3FC0
USB\VID_2A39&PID_3FC0&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_2A39&PID_3FC0"

macOS

$ system_profiler SPUSBDataType
    Babyface Pro:
      Product ID: 0x3fc0
      Vendor ID: 0x2a39  (RME)

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:

2a39  RME
	3fc0  Babyface Pro

• 2a39:3fb0 Babyface Pro (Class Compliant Mode)
• 2a39:3fc1 Fireface UFX+
• 2a39:3fc2 Fireface UFX+
• 2a39:3fd1 Fireface UFX+

See all 5 devices from RME →