... 352x240), HD1(704x240), D1(704x480)Total Recording Frame RatePAL: 25fps@D1, 50fps@HD1, 100fps@CIFNTSC: 30fps@D1, 60fps@HD1, 120fps ... HDD rack supports up to 1TB HDD / SD card for secondary storage deviceGPS (optional)Support GPS information ... mouse, USB disk (backup, upgrade)PlaybackLocal: playback 4 channels simultaneouslyNetwork: playback 1 channel simultaneouslyPlayback ModeNormal play, fast forward ...