CP Plus CP-UVR-0401E1-V4 4 Ch 1080P Lite Cosmic HD DVR without HDD (0.75 kg) Processorembedded processor operating systemembedded Linux two-way talkreuse audio input/output channel 1 user interfacegui video input4 channel, bnc video output1 HDMI, 1 VGA video standardanalog: ntsc(525Line, 60f/s), pal(625Line, 50f/s), hdcvi: 1080p/720p hdcvi camera, IP: 1080p/720p/d1/cif IP camera compressionh.264 / G.711 Video resolution1920x1080p, 1280x1024p, 1280x720p, 1024x768p video recordingmain stream: 720p/960h/d1/hd1/2cif/cif(1~25/30fps), extra stream: cif/qcif(1~25/30fps) video display split42739 audio input1 channel, RCA audio output1 channel, RCA motion detectionsupports video losssupports camera blanksupports hard disk1 SATA port, up to 4tb smart phone iPhone, iPad, Android, windows phone trigger eventsrecording, ptz, tour, video push,, FTP, spot, buzzer and ; screen tips recording modemanual, schedule(Regular(Continuous), md), stop search modetime/date, md and ; exact search (accurate to second) playbackplay, pause, stop, rewind, fast play, slow play, next file, previous file,next camera, previous camera, full screen, repeat, shuffle, backup, selection, digital zoom backup modeusb device/internal SATA burner/network interface ports1 HDMI, 1 VGA, 2 usb2.0, 1 Rs485 record interval1~60 min (default: 60 min), pre-record: 1~30 sec, post-record: 10~300 sec max user account128 users ethernetrj-45 port (10/100M), IPV4/IPV6, TCP/IP, upnp, rtsp, udp, smtp, ntp, dhcp, dns, pppoe, ddns, FTP, IP filter, snmp, p2p, onvif version 2.4 Conformance power supplydc12v/1.5A power consumption10w(without HDD) working temp-10 ~+55c / 10~90%rh / 86~106kpa dimension260mmx220mmx40mm, weight0.75Kg(without HDD).