Unlike other solutions, it requires no deployment of agents on client computers. Another advantage of the tool is simplicity, only a couple of mouse clicks to get the work done. And the most exciting: the software is completely free of charge.
Benefits:
1) Prevents unauthorized use of removable devices.
2) Hardens endpoint security.
3) Enables regulatory compliance, such as SOX, GLBA and HIPAA.
4) Freeware! Saves your IT buck for other important projects.
Features:
1) Seamlessly integrates with Active Directory.
2) Requires no client deployment (no agents).
3) Fully centralized management.
4) Very simple to use, no monster tools and long learning curves.
NetWrix USB Blocker is provided free of charge for unlimited use by organizations and individuals.
http://fileshome.com/endpoint_security_block_USB_USB_device_lockdown_53780.html