Configure SD card restrictions to control usage of SD cards on the user's Samsung device that supports Knox.
To restrict SD card usage on a mobile device:
In the main window of Kaspersky Security Center Web Console, select Assets (Devices) → Policies & profiles. In the list of group policies that opens, click the name of the policy that you want to configure.
In the policy properties window, select Application settings.
Select Android and go to the Samsung Knox settings section.
On the Device feature restrictions card, click Settings.
The Device feature restrictions window opens.
Enable the settings using the Device feature restrictions toggle switch.
In the SD card settings section, specify the required restrictions: