... interface to stably achieve amount of operations such as using USB mouse, backup, burning, upgradingThe operation system is similar ... and playback, multi-channel net operation for several persons, USB backupOperation Interface16-bit true color graphical menu interface and mouse ... ), and net Backup ModeNetwork burn, mobile Hard disk and USB burnInterfaceVideo Input4channel, BNC, 1.0Vp-p,75Ω8channel,BNC, ...