... Compression format H.264 Language Chinese,English,Japannese,Korean Video System NTSC PAL Video Input 8CH , NTSC/PAL, 1.0VP ... 4CH Recording Modes Manual, Continue, alarm, motion detection Operating System Embeded Linux Operating Method USB mouse, remote control, control panel ... ,preset positions operation Support HD Storage SATA×2 Backup System USB,CD-RW,network backup,AVI format backup Power Supply DC ...