Video Compression H.264 Video System NTSC / PAL Operation System Linux Audio Compression 8kHz*16bit ADPCM Input / Output Video 1TV output; 1VGA ;HDMI: 1080P Input / Output Audio None Display Frame Rate PAL :1280*720P@25fps(each ch), 1280*960P@25fps(each ch), 1920*1080P@25fps(each ch) NTSC:1280*720P@30fps(each ch), 1280*960P@30fps(each ch), 1920*1080P@30fps(each ch Record Resolution PAL :1280*720P@25fps(each ch), 1280*960P@25fps(each ch), 1920*1080P@25fps(each ch) NTSC:1280*720P@30fps(each ch), 1280*960P@30fps(each ch), 1920*1080P@30fps(each ch Record Speed 25(PAL)/30(NTSC)FPS(each ch) Record Modes Continuous/Manual/Motion detect /Sensor/Alarm recording Playback Channel 1/4 Ch Playback 4ch 960P / 2ch 1080P Playback Speed PAL: 25fps(each ch) NTSC: 30fps(each ch) HDD Interface 1 x SATA HDD HDD Capability Up to 4 TB Network Lan, DHCP, Dynamic IP and DDNS Multiplex Operation Live display, record, playback, backup and network USB 2.0 USB mouse, backup, upgrade (USB flash disk) Mobile Surveillance Mobile Phones based on Windows Mobile, Symbian, iPhone, Blackberry and Android operation system Power Supply DC12V / 2.5A (power adaptor included) Power Consumption 10-15W Working Temperature -10℃-+40℃ Working Humidity 10%-90% Mouse Included VGA Output 800*600,1024*768,1280*1024,1440*900,1920*1080 HDMI 1920x1080p Dimension 252×213×42mm Gross Weight 1.8KG ( without hard disk)