Model DVR-O04H Color White Material Environmental plastic Quantity 1 Set Video Compressed Format H.264 Video Input 4 channel Video Output 4CH Video System PALNTSC Video Standards H.264 Audio NoMP3WAV Audio Input 1 Channel Audio Output 1CH Max Capacity 64GB Interface Type OthersSD card Operating System Linux Supported Languages EnglishSimplified Chinese PTZ Control Supported Picture Resolution 1024 x 768 Working Temperature 0~40 ? Working Humidity 45~65% Storage Temperature Yes Alarm Input No Alarm Output No Network Interface 1 x RJ45 USB Port Qty 3 Set Power Adaptor Yes Plug Specifications US Plug (2-Flat-Pin Plug) Rate Voltage DC 12V Rated Current 2 A Power 24 W Power Supply Others Certification FCC / CE / CCC Other Features Other interfaces: 1 x HDMI / 1 x VGA / 2 x USB ports / 1 x RJ45 Packing List 1 x Digital DVR system 1 x Mouse (120cm-cable) 1 x 2-flat-pin plug power charger (100~240V / 120cm) 1 x DC male to male cable (60cm) 1 x BNC cable (70cm) 1 x Chinese / English user manual 1 x CD