8 CH Tribrid 1080N Real Time Recorder H.264 dual-stream video compression16CH PlaybackTribrid ( IP+CVI+CVBS ) N+M [16+2 IP up to 5 Megapixel (72 Mbps) ]1 Audio Input / 1 Audio Output2 SATA Port , Up to 12 TBVoice over Coax Support HDMI , VGA ,simultanous video OutputRS485 for PTZ support2 USB 2.010/100 Mbps LAN InterfaceP2P Support