3340:ffff — Mio DigiWalker Sync

This is the USB identifier for a Mio DigiWalker Sync manufactured by Yakumo. The vendor ID 3340 is registered to Yakumo with the USB Implementers Forum, and ffff is the product ID that Yakumo assigned to this particular model. When you run lsusb on Linux, this device appears as 3340:ffff Yakumo Mio DigiWalker Sync.

Linux

$ lsusb
Bus 001 Device 004: ID 3340:ffff Yakumo Mio DigiWalker Sync

You can filter directly with lsusb -d 3340:ffff, or get the full descriptor dump with lsusb -v -d 3340:ffff. Kernel messages from dmesg show the same pair as idVendor=3340, idProduct=ffff.

Windows

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

USB\VID_3340&PID_FFFF
USB\VID_3340&PID_FFFF&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_3340&PID_FFFF"

macOS

$ system_profiler SPUSBDataType
    Mio DigiWalker Sync:
      Product ID: 0xffff
      Vendor ID: 0x3340  (Yakumo)

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:

3340  Yakumo
	ffff  Mio DigiWalker Sync

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See all 4 devices from Yakumo →