... /PAL,120fps/NTSC Support 1TB-1.5TBSATA HD Description: 4CH DVR,network dvr 4CH H.264 Compression DVR4CH Audio&Video Input(CIF/HD1/D1) 3G ... Recording:100fps/PAL,120fps/NTSC2 Users LevelVGA optional 1CH or 4CH playback at a time4CH Alarm Input,1CH Alarm Output . ... , serial interface(R232/R485), IE USB,Mouse,Remote Controller 4CH H.264 Compression DVR with 3G Mobile Surveillance via Wireless Internet