0403:ff08 — ToolHouse LoopBack Adapter

Future Technology Devices International, Ltd

Vendor ID: 0403
Product ID: ff08
Combined: 0403:ff08
Decimal: 1027:65288

What is this device?

This is the USB identifier for a ToolHouse LoopBack Adapter manufactured by Future Technology Devices International, Ltd. The vendor ID 0403 is registered to Future Technology Devices International, Ltd with the USB Implementers Forum, and ff08 is the product ID that Future Technology Devices International, Ltd assigned to this particular model. When you run lsusb on Linux, this device appears as 0403:ff08 Future Technology Devices International, Ltd ToolHouse LoopBack Adapter.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 0403:ff08 Future Technology Devices International, Ltd ToolHouse LoopBack Adapter

You can filter directly with lsusb -d 0403:ff08, or get the full descriptor dump with lsusb -v -d 0403:ff08. Kernel messages from dmesg show the same pair as idVendor=0403, idProduct=ff08.

Windows

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

USB\VID_0403&PID_FF08
USB\VID_0403&PID_FF08&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0403&PID_FF08"

macOS

$ system_profiler SPUSBDataType
    ToolHouse LoopBack Adapter:
      Product ID: 0xff08
      Vendor ID: 0x0403  (Future Technology Devices International, 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. Future Technology Devices International, Ltd official support →

Raw usb.ids entry

The exact lines this page is generated from, in the upstream source file:

0403  Future Technology Devices International, Ltd
	ff08  ToolHouse LoopBack Adapter

More from Future Technology Devices International, Ltd

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