This article explains why you may wish to use Device Port Locking in EloView 4

External flash drives and hard drives pose a significant security risk to any computer system. With EloView, you can secure USB ports on managed devices by disabling them, preventing malware, viruses, and unauthorized data transfers.
 

Unlike many software-based solutions that simply block access while leaving the USB port operational, EloView disables the USB controller chip itself, making the port completely inoperable. This hardware-based solution provides a higher level of security.

Steps for using this feature can be seen in our knowledge article: How to Configure Peripheral Ports in EloView