0416:551b — PC Async Keypad
Winbond Electronics Corp.
- Vendor ID
- 0416
- Product ID
- 551b
- Combined
- 0416:551b
- Decimal
- 1046:21787
What is this device?
This is the USB identifier for a PC Async Keypad manufactured by Winbond Electronics Corp.. The vendor ID 0416 is registered to Winbond Electronics Corp. with the USB Implementers Forum, and 551b is the product ID that Winbond Electronics Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 0416:551b Winbond Electronics Corp. PC Async Keypad.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 0416:551b Winbond Electronics Corp. PC Async Keypad
You can filter directly with lsusb -d 0416:551b, or get the full descriptor dump with lsusb -v -d 0416:551b. Kernel messages from dmesg show the same pair as idVendor=0416, idProduct=551b.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_0416&PID_551B USB\VID_0416&PID_551B&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0416&PID_551B"
macOS
$ system_profiler SPUSBDataType
PC Async Keypad:
Product ID: 0x551b
Vendor ID: 0x0416 (Winbond Electronics 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:
0416 Winbond Electronics Corp. 551b PC Async Keypad