2730:0fff — CT-S2000/4000/310/CLP-521/621/631/CL-S700 Series
Citizen
- Vendor ID
- 2730
- Product ID
- 0fff
- Combined
- 2730:0fff
- Decimal
- 10032:4095
What is this device?
This is the USB identifier for a CT-S2000/4000/310/CLP-521/621/631/CL-S700 Series manufactured by Citizen. The vendor ID 2730 is registered to Citizen with the USB Implementers Forum, and 0fff is the product ID that Citizen assigned to this particular model. When you run lsusb on Linux, this device appears as 2730:0fff Citizen CT-S2000/4000/310/CLP-521/621/631/CL-S700 Series.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 2730:0fff Citizen CT-S2000/4000/310/CLP-521/621/631/CL-S700 Series
You can filter directly with lsusb -d 2730:0fff, or get the full descriptor dump with lsusb -v -d 2730:0fff. Kernel messages from dmesg show the same pair as idVendor=2730, idProduct=0fff.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_2730&PID_0FFF USB\VID_2730&PID_0FFF&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_2730&PID_0FFF"
macOS
$ system_profiler SPUSBDataType
CT-S2000/4000/310/CLP-521/621/631/CL-S700 Series:
Product ID: 0x0fff
Vendor ID: 0x2730 (Citizen)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:
2730 Citizen 0fff CT-S2000/4000/310/CLP-521/621/631/CL-S700 Series