4/8/16 channel Linux system DVR Support IE and client, remote parameter settings, ... streaming save 28% HDD USB2.0, USB mouse ,USB backup,USB-RW ,USB upgrade cooperation stable Similar to Windows operating style ... /SpaceAudio: 28.8M/ h + Video: 25 ~ 450M / hStorgeHDD,WEBBackup modeWEB,USB,USB-RWWEB,USB,USB/SATA-RWWEB,USB, USB/SATA-RWPortVideo input4 ch BNC8 ... 8kg 4/8/16 channel Linux system DVR