User74737028,
You will need to use a Removable Storage device rule to manage the external device. The device seems to contain a file system, this is why it is showing up as a new drive.
You will need to first obtain a GUID by taking below steps.
Obtain a GUID
Device class definitions require a name and one or more globally unique identifiers (GUIDs).
Some hardware devices install their own new device class. If a suitable device class does not exist on the predefined list, or is not created automatically when new hardware is installed, you can create a new device class in the DLP Policy Manager. To control the behavior of plug-and-play hardware devices that define their own device class, you must first add a new device class to the Managed status in the Device Classes list. A device class is defined by two properties: a name and a GUID. The name of a new device is displayed in the device manager, but the GUID is displayed only in the Windows Registry and there is no easy way to obtain it. To ease the retrieval of new device names and GUIDs, the Device Control client reports a New Device Class Found
event to the DLP Incident Manager when a hardware device that does not belong to a recognized device class is plugged into the host computer.
1 In McAfee ePO, select (Menu | Data Protection | DLP Incident Manager | Incident List).
2 Click Edit next to the Filter drop-down list to edit the filter criteria.
3 In the Available Properties list (left pane), select Incident Type.
4 Verify that the Comparison drop-down list value is Equals.
5 From the Values drop-down list, select Device New Class Found
6 Click Update Filter.
The Incident List displays the new device classes found on all endpoint computers.
7 To view the name and GUID of a specific device, double-click the item to display the incident details.
After GUID is obtained and take below steps.
Create a device class
Create a device class if a suitable device class does not exist on the predefined list or is not created
automatically when new hardware is installed.
1 In McAfee ePO, select Menu | Data Protection | DLP Policy Manager | Definitions.
2 In the left pane, select Device Control | Device Class.
3 Do one of the following:
• Select Actions | New.
• Locate a similar device class on the built-in device class list, then click Duplicate in the Actions column. Click
Edit for the duplicated device class.
4 Enter a unique Name and optional Description.
5 Verify the Status and Filter Type required.
6 Enter the GUID, then click Add.
The GUID must be in the correct format. You are prompted if you enter it incorrectly.
7 Click Save
I hope this helps.
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