10ab:1003 — BC02-EXT in DFU
USI Co., Ltd
- Vendor ID
- 10ab
- Product ID
- 1003
- Combined
- 10ab:1003
- Decimal
- 4267:4099
What is this device?
This is the USB identifier for a BC02-EXT in DFU manufactured by USI Co., Ltd. The vendor ID 10ab is registered to USI Co., Ltd with the USB Implementers Forum, and 1003 is the product ID that USI Co., Ltd assigned to this particular model. When you run lsusb on Linux, this device appears as 10ab:1003 USI Co., Ltd BC02-EXT in DFU.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 10ab:1003 USI Co., Ltd BC02-EXT in DFU
You can filter directly with lsusb -d 10ab:1003, or get the full descriptor dump with lsusb -v -d 10ab:1003. Kernel messages from dmesg show the same pair as idVendor=10ab, idProduct=1003.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_10AB&PID_1003 USB\VID_10AB&PID_1003&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_10AB&PID_1003"
macOS
$ system_profiler SPUSBDataType
BC02-EXT in DFU:
Product ID: 0x1003
Vendor ID: 0x10ab (USI Co., 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.
Raw usb.ids entry
The exact lines this page is generated from, in the upstream source file:
10ab USI Co., Ltd 1003 BC02-EXT in DFU