07e1:5201 — V.90 Modem

This is the USB identifier for a V.90 Modem manufactured by Ambient Technologies, Inc.. The vendor ID 07e1 is registered to Ambient Technologies, Inc. with the USB Implementers Forum, and 5201 is the product ID that Ambient Technologies, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 07e1:5201 Ambient Technologies, Inc. V.90 Modem.

Linux

$ lsusb
Bus 001 Device 004: ID 07e1:5201 Ambient Technologies, Inc. V.90 Modem

You can filter directly with lsusb -d 07e1:5201, or get the full descriptor dump with lsusb -v -d 07e1:5201. Kernel messages from dmesg show the same pair as idVendor=07e1, idProduct=5201.

Windows

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

USB\VID_07E1&PID_5201
USB\VID_07E1&PID_5201&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_07E1&PID_5201"

macOS

$ system_profiler SPUSBDataType
    V.90 Modem:
      Product ID: 0x5201
      Vendor ID: 0x07e1  (Ambient Technologies, Inc.)

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.

The exact lines this page is generated from, in the upstream source file:

07e1  Ambient Technologies, Inc.
	5201  V.90 Modem

See all 1 devices from Ambient Technologies, Inc. →