... 3,Support a 2TB HDD, with VGA, RS485, mouse 4CH CCTV and DVR Recorder H.264 FeaturesWith H.264 High efficiency ... USB2.0 slot, support USB, mouse, backup, burning, upgradeStrong Network server, support IE review and CMS(can manager over 500 units ... persons, USB backupOperation Interface16-bit true color graphical menu interface and mouse supportMenu display1/4/8/9/screenVideo StandardsPAL(625 line,50 ...