4Channel Penta-brid 720P Compact 1U Digital Video Recorder H.265+/H.265 dual-stream video compression, 4CH: 1/4 Playback Pentabrid (IP+CVI+AHD+TVI+CVBS) N+M [4+1 IP up to 2 MP(20 Mbps)] 1 Audio Input / 1 Audio Output, 1 SATA Port , Up to 6 TB HDMI , VGA ,simultanous video Output, RS485 for PTZ support 2*USB 2.0, 10/100 Mbps LAN Interface, P2P Support