Video Compression    H.264 
Video System   NTSC/PAL 
Operation System   Linux(embedded) 
Video-input /output   4CH input /1CH output(BNC) 
Audio input /output   4CH input /1CH output(RCA) 
Display   resolution  PAL:960×576@25fps(each ch,Frame) NTSC:960×480@30fps(each ch,Frame)   
feature  single/ Quad/S.E.Q. 
Record (only record)  resolution  PAL  :D1 mode  360×288(CIF),720x288(HD1),720x576(D1)
960H mode 480×288(WCIF),960×288(WHD1),960×576(WD1)
NTSC:D1 mode 360×240(CIF),720x240(HD1),720x480(D1)
960H mode 480×240(WCIF),960×240(WHD1),960×480(WD1) 
speed  PAL: (each ch,Frame) D1mode/960Hmode: 25fps
NTSC:(each ch,Frame) D1mode/960Hmode: 30fps  
Recording Mode  Continuous/Manual/Motion detect /Sensor/Alarm recording 
Playback Channel  1/4ch  
 Playback speed(simultaneously 4CH Record )  PAL: (each ch,Frame) D1mode/960Hmode: 25fps
NTSC:(each ch,Frame) D1mode/960Hmode: 30fps 
Sensor & Alarm I/O  4ch sensor input
1 channel alarm out 
Network   Lan, DHCP, Dynamic IP and DDNS 
HDD interface  1SATA HDDs, up to 2TB 
Multiplex Operation  live display, record, playback, backup and network 
USB   2xUSB(for mouse and backup/upgrade) 
PTZ Control  Built in RS485, support Pelco-P & Pelco-D 
Mobile Surveillance  Support Mobile Phones based on Windows mobile, Symbian, iPhone, Blackberry and Android operation system 
VGA  800*600,1024*768, 1280*1024,1440*900, 1920*1080 
HDMI  1080P 
Power Supply  DC 12V 2A 
Dimension(wxDxH)  300X227X53mm