8ch video input,8ch audio input,2 SATA HDD support(or 1HDD + DVD-RW),USB 2.0,VGA,PTZ,Alarm(optional).D1 100/120FPS, ... with 8 channel audio input support 3G/wifi 8ch video input,8ch audio input,2 SATA HDD support(or 1HDD + DVD-RW),USB 2.0,VGA ... (Option)and BNC simultaneous outputAlarm8 Channels(option)Audio Input/Output8CH RCA / 1CH RCAHard DiskFlash drive/USB HDD/USB CD/Network download/DVR-RW(support ...