Type ZTG-DVR16CH-1080P Compression H.264 / JPEG ( Dual Codec ) OS Embedded Linux Video Input 16ch Video Output HDMI / VGA / SPOT Recording Resolution 1080P / 720p / 960H / 720H Audio Input / Output Audio input : 16 (8 RCA + 8 DB15) Audio output : 1 RCA Sensor Input Relay Output Sensor Input : 16 (NC, NO selectable) Relay output : 1 relay (Alarm) Recording Speed (1080p) 480 frame Search Calendar, Event, POS, Panorama, Preview SATA HDD 2 EA Back up USB / Network / External HDD Interface PTZ, USB, RS-232, RS-485 Control Keypad, Mouse Network MEGA / GIGA BIT Ethernet ( RJ-45) DHCP & DDNS, TCP/IP, HTTP Remote connection IE / Safari / Firefox Operating Temp 5°C~40°C ( 41~104F) Operating Humid 20% ~ 80% ( Non-condensing ) Power Consumption 16CH : 60W Dimension (mm) (W x D x H) 380 x 340 x 50