0509:0802 ADSL Modem (RFC1483)

Aztech Systems, Ltd

Vendor ID
0509
Product ID
0802
Combined
0509:0802
Decimal
1289:2050

What is this device?

This is the USB identifier for a ADSL Modem (RFC1483) manufactured by Aztech Systems, Ltd. The vendor ID 0509 is registered to Aztech Systems, Ltd with the USB Implementers Forum, and 0802 is the product ID that Aztech Systems, Ltd assigned to this particular model. When you run lsusb on Linux, this device appears as 0509:0802 Aztech Systems, Ltd ADSL Modem (RFC1483).

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 0509:0802 Aztech Systems, Ltd ADSL Modem (RFC1483)

You can filter directly with lsusb -d 0509:0802, or get the full descriptor dump with lsusb -v -d 0509:0802. Kernel messages from dmesg show the same pair as idVendor=0509, idProduct=0802.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_0509&PID_0802
USB\VID_0509&PID_0802&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0509&PID_0802"

macOS

$ system_profiler SPUSBDataType
    ADSL Modem (RFC1483):
      Product ID: 0x0802
      Vendor ID: 0x0509  (Aztech Systems, 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:

0509  Aztech Systems, Ltd
	0802  ADSL Modem (RFC1483)

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