Dell OpenManage Deployment Toolkit Version 4.3 Command Line Interface Reference Guide

Enables or disables USB ports. When set to enable, it enables all user accessible USB ports. When set to enablebackonly, the front user-accessible ports are disabled. When set to disable, both front and back user accessible ports are disabled. This option can be replicated.

Example:

A:>syscfg --usbports=enable

usbports=enable