1546:01a4 — Antaris 4

This is the USB identifier for a Antaris 4 manufactured by U-Blox AG. The vendor ID 1546 is registered to U-Blox AG with the USB Implementers Forum, and 01a4 is the product ID that U-Blox AG assigned to this particular model. When you run lsusb on Linux, this device appears as 1546:01a4 U-Blox AG Antaris 4.

Linux

$ lsusb
Bus 001 Device 004: ID 1546:01a4 U-Blox AG Antaris 4

You can filter directly with lsusb -d 1546:01a4, or get the full descriptor dump with lsusb -v -d 1546:01a4. Kernel messages from dmesg show the same pair as idVendor=1546, idProduct=01a4.

Windows

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

USB\VID_1546&PID_01A4
USB\VID_1546&PID_01A4&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_1546&PID_01A4"

macOS

$ system_profiler SPUSBDataType
    Antaris 4:
      Product ID: 0x01a4
      Vendor ID: 0x1546  (U-Blox AG)

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:

1546  U-Blox AG
	01a4  Antaris 4

• 1546:01a5 [u-blox 5]
• 1546:01a6 [u-blox 6]
• 1546:01a7 [u-blox 7]
• 1546:01a8 [u-blox 8]

See all 6 devices from U-Blox AG →