... , support IE review and CMS(can manager over 500 units DVR) ◊ With Chinese, Russian, English, Italian, Portuguese, Spanish, ………… , Arabic, 25 language ... )Storage &BackupSpace OccupationD1: 20G/DAY/CHVideo storage Hard disk, SD card, and netBackup ModeNetwork burn, mobile Hard disk and USB burn ... .5 kg(NOT WITH HDD) New ! D1 H.264 ,quality dvr,cctv dvr ,D1 dvr,digital video recoder