0ac9:0011 — Backpack 40GB Hard Drive

This is the USB identifier for a Backpack 40GB Hard Drive manufactured by Micro Solutions, Inc.. The vendor ID 0ac9 is registered to Micro Solutions, Inc. with the USB Implementers Forum, and 0011 is the product ID that Micro Solutions, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 0ac9:0011 Micro Solutions, Inc. Backpack 40GB Hard Drive.

Linux

$ lsusb
Bus 001 Device 004: ID 0ac9:0011 Micro Solutions, Inc. Backpack 40GB Hard Drive

You can filter directly with lsusb -d 0ac9:0011, or get the full descriptor dump with lsusb -v -d 0ac9:0011. Kernel messages from dmesg show the same pair as idVendor=0ac9, idProduct=0011.

Windows

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

USB\VID_0AC9&PID_0011
USB\VID_0AC9&PID_0011&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0AC9&PID_0011"

macOS

$ system_profiler SPUSBDataType
    Backpack 40GB Hard Drive:
      Product ID: 0x0011
      Vendor ID: 0x0ac9  (Micro Solutions, 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:

0ac9  Micro Solutions, Inc.
	0011  Backpack 40GB Hard Drive

• 0ac9:0000 Backpack CD-ReWriter
• 0ac9:0001 BACKPACK 2 Cable
• 0ac9:0010 BACKPACK CD Drive
• 0ac9:0110 BACKPACK
• 0ac9:0111 BackPack
• 0ac9:10ff BACKPACK
• 0ac9:1234 BACKPACK

See all 8 devices from Micro Solutions, Inc. →