2100:9e5d — K4Y Radio Cable
RT Systems
- Vendor ID
- 2100
- Product ID
- 9e5d
- Combined
- 2100:9e5d
- Decimal
- 8448:40541
What is this device?
This is the USB identifier for a K4Y Radio Cable manufactured by RT Systems. The vendor ID 2100 is registered to RT Systems with the USB Implementers Forum, and 9e5d is the product ID that RT Systems assigned to this particular model. When you run lsusb on Linux, this device appears as 2100:9e5d RT Systems K4Y Radio Cable.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 2100:9e5d RT Systems K4Y Radio Cable
You can filter directly with lsusb -d 2100:9e5d, or get the full descriptor dump with lsusb -v -d 2100:9e5d. Kernel messages from dmesg show the same pair as idVendor=2100, idProduct=9e5d.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_2100&PID_9E5D USB\VID_2100&PID_9E5D&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_2100&PID_9E5D"
macOS
$ system_profiler SPUSBDataType
K4Y Radio Cable:
Product ID: 0x9e5d
Vendor ID: 0x2100 (RT Systems)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:
2100 RT Systems 9e5d K4Y Radio Cable