0403:a9a0 — FT2232D - Dual UART/FIFO IC - FTDI

This is the USB identifier for a FT2232D - Dual UART/FIFO IC - FTDI 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 a9a0 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:a9a0 Future Technology Devices International, Ltd FT2232D - Dual UART/FIFO IC - FTDI.

Linux

$ lsusb
Bus 001 Device 004: ID 0403:a9a0 Future Technology Devices International, Ltd FT2232D - Dual UART/FIFO IC - FTDI

You can filter directly with lsusb -d 0403:a9a0, or get the full descriptor dump with lsusb -v -d 0403:a9a0. Kernel messages from dmesg show the same pair as idVendor=0403, idProduct=a9a0.

Windows

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

USB\VID_0403&PID_A9A0
USB\VID_0403&PID_A9A0&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0403&PID_A9A0"

macOS

$ system_profiler SPUSBDataType
    FT2232D - Dual UART/FIFO IC - FTDI:
      Product ID: 0xa9a0
      Vendor ID: 0x0403  (Future Technology Devices International, Ltd)

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 →

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

0403  Future Technology Devices International, Ltd
	a9a0  FT2232D - Dual UART/FIFO IC - FTDI

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See all 179 devices from Future Technology Devices International, Ltd →