0409:021d — Aterm WL54SU2 802.11g Wireless Adapter [Atheros AR5523]
NEC Corp.
- Vendor ID
- 0409
- Product ID
- 021d
- Combined
- 0409:021d
- Decimal
- 1033:541
What is this device?
This is the USB identifier for a Aterm WL54SU2 802.11g Wireless Adapter [Atheros AR5523] manufactured by NEC Corp.. The vendor ID 0409 is registered to NEC Corp. with the USB Implementers Forum, and 021d is the product ID that NEC Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 0409:021d NEC Corp. Aterm WL54SU2 802.11g Wireless Adapter [Atheros AR5523].
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 0409:021d NEC Corp. Aterm WL54SU2 802.11g Wireless Adapter [Atheros AR5523]
You can filter directly with lsusb -d 0409:021d, or get the full descriptor dump with lsusb -v -d 0409:021d. Kernel messages from dmesg show the same pair as idVendor=0409, idProduct=021d.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_0409&PID_021D USB\VID_0409&PID_021D&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0409&PID_021D"
macOS
$ system_profiler SPUSBDataType
Aterm WL54SU2 802.11g Wireless Adapter [Atheros AR5523]:
Product ID: 0x021d
Vendor ID: 0x0409 (NEC 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:
0409 NEC Corp. 021d Aterm WL54SU2 802.11g Wireless Adapter [Atheros AR5523]