AdminDeviceLan is a free program that will let you block devices, even over a network. The program can be used even on a single PC, but is created mainly for networks.

Features: Block CD-ROM (DVD-ROM), FDD (Floppy disk), Flash drive, prohibit recording on a flash drive; Synchronize time and date for network computers;

Reboot and switch off computers entering into a network; Batch job performance on several computers.

You can use AdminDeviceLan to stop thefts of information, unapproved installation of programs, penetration of viruses from removable drives.