12d1:1021 — U8520
Huawei Technologies Co., Ltd.
- Vendor ID
- 12d1
- Product ID
- 1021
- Combined
- 12d1:1021
- Decimal
- 4817:4129
What is this device?
This is the USB identifier for a U8520 manufactured by Huawei Technologies Co., Ltd.. The vendor ID 12d1 is registered to Huawei Technologies Co., Ltd. with the USB Implementers Forum, and 1021 is the product ID that Huawei Technologies Co., Ltd. assigned to this particular model. When you run lsusb on Linux, this device appears as 12d1:1021 Huawei Technologies Co., Ltd. U8520.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 12d1:1021 Huawei Technologies Co., Ltd. U8520
You can filter directly with lsusb -d 12d1:1021, or get the full descriptor dump with lsusb -v -d 12d1:1021. Kernel messages from dmesg show the same pair as idVendor=12d1, idProduct=1021.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_12D1&PID_1021 USB\VID_12D1&PID_1021&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_12D1&PID_1021"
macOS
$ system_profiler SPUSBDataType
U8520:
Product ID: 0x1021
Vendor ID: 0x12d1 (Huawei Technologies Co., Ltd.)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:
12d1 Huawei Technologies Co., Ltd. 1021 U8520