090a:1540 — Digitex Container Flash Disk

This is the USB identifier for a Digitex Container Flash Disk manufactured by Trumpion Microelectronics, Inc.. The vendor ID 090a is registered to Trumpion Microelectronics, Inc. with the USB Implementers Forum, and 1540 is the product ID that Trumpion Microelectronics, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 090a:1540 Trumpion Microelectronics, Inc. Digitex Container Flash Disk.

Linux

$ lsusb
Bus 001 Device 004: ID 090a:1540 Trumpion Microelectronics, Inc. Digitex Container Flash Disk

You can filter directly with lsusb -d 090a:1540, or get the full descriptor dump with lsusb -v -d 090a:1540. Kernel messages from dmesg show the same pair as idVendor=090a, idProduct=1540.

Windows

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

USB\VID_090A&PID_1540
USB\VID_090A&PID_1540&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_090A&PID_1540"

macOS

$ system_profiler SPUSBDataType
    Digitex Container Flash Disk:
      Product ID: 0x1540
      Vendor ID: 0x090a  (Trumpion Microelectronics, Inc.)

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:

090a  Trumpion Microelectronics, Inc.
	1540  Digitex Container Flash Disk

• 090a:1001 T33520 Flash Card Controller
• 090a:1100 Comotron C3310 MP3 player
• 090a:1200 MP3 player

See all 4 devices from Trumpion Microelectronics, Inc. →