067b:04bb — PL2303 Serial (IODATA USB-RSAQ2)
Prolific Technology, Inc.
- Vendor ID
- 067b
- Product ID
- 04bb
- Combined
- 067b:04bb
- Decimal
- 1659:1211
What is this device?
This is the USB identifier for a PL2303 Serial (IODATA USB-RSAQ2) manufactured by Prolific Technology, Inc.. The vendor ID 067b is registered to Prolific Technology, Inc. with the USB Implementers Forum, and 04bb is the product ID that Prolific Technology, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 067b:04bb Prolific Technology, Inc. PL2303 Serial (IODATA USB-RSAQ2).
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 067b:04bb Prolific Technology, Inc. PL2303 Serial (IODATA USB-RSAQ2)
You can filter directly with lsusb -d 067b:04bb, or get the full descriptor dump with lsusb -v -d 067b:04bb. Kernel messages from dmesg show the same pair as idVendor=067b, idProduct=04bb.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_067B&PID_04BB USB\VID_067B&PID_04BB&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_067B&PID_04BB"
macOS
$ system_profiler SPUSBDataType
PL2303 Serial (IODATA USB-RSAQ2):
Product ID: 0x04bb
Vendor ID: 0x067b (Prolific Technology, Inc.)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:
067b Prolific Technology, Inc. 04bb PL2303 Serial (IODATA USB-RSAQ2)