3923:703c — USB-485 RS485 Cable
National Instruments Corp.
- Vendor ID
- 3923
- Product ID
- 703c
- Combined
- 3923:703c
- Decimal
- 14627:28732
What is this device?
This is the USB identifier for a USB-485 RS485 Cable manufactured by National Instruments Corp.. The vendor ID 3923 is registered to National Instruments Corp. with the USB Implementers Forum, and 703c is the product ID that National Instruments Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 3923:703c National Instruments Corp. USB-485 RS485 Cable.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 3923:703c National Instruments Corp. USB-485 RS485 Cable
You can filter directly with lsusb -d 3923:703c, or get the full descriptor dump with lsusb -v -d 3923:703c. Kernel messages from dmesg show the same pair as idVendor=3923, idProduct=703c.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_3923&PID_703C USB\VID_3923&PID_703C&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_3923&PID_703C"
macOS
$ system_profiler SPUSBDataType
USB-485 RS485 Cable:
Product ID: 0x703c
Vendor ID: 0x3923 (National Instruments Corp.)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:
3923 National Instruments Corp. 703c USB-485 RS485 Cable