Compression format:Video:H.264 baseline Compression & Audio: G.726 8K/16k bit ADPCM mono Video Input:4 ch. BNC Audio Input:4 ch. RCA Video Input:1 Ch.BNC Audio Input:1 Ch.RCA VGA output:yes Recording mode:manaual/schedule/sensor trigger/motion detection/Power-on auto record DVDRW support:no Sensors, alarm:4 Input,1output Network interface:1RJ45 10/100 mbps ethernet connector Media backup:USB flash disk,Network PTZ control:RSS-485 IR remote control unit:yes USB mouse:yes Operating temprature:5deg.C +40deg.C Power supply:DC12V Dimensions:315(W) x 224(D) x 52(H) mm